Physics for Scientists and Engineers with Modern Physics
4th Edition
ISBN: 9780131495081
Author: Douglas C. Giancoli
Publisher: Addison-Wesley
expand_more
expand_more
format_list_bulleted
Textbook Question
Chapter 26, Problem 60P
(II) An ammeter whose internal resistance is 53 Ω reads 5.25 mA when connected in a circuit containing a battery and two resistors in series whose values are 650 Ω and 480 Ω. What is the actual current when the ammeter is absent?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
(II) Calculate the ratio of the resistance of 10.0 m of aluminum wire 2.2 mm in diameter, to 24.0 m of copper wire 1.8 mm in diameter.
Te-Learning Portal
Courses -
Reports
e-Services ▼
Academic Departments -
ETC -
CIMS
Salim
During an experiment to verify Ohm's law, the voltage supplied and the current through a circuit are measured.
[Voltage is measured in Volt (V) and current in Ampere (A)].
ww
R
on
Battery
The measured value of the current is I = 3.1 ± 0.2 A and that of the voltage is V = 14 0.5 V. The resistance of
the circuit (in N) can be calculated using the formula, R = V/I,
Calculate the,
a) Resistance (in 2) =
b) Fractional uncertainty in the resistance =
c) Absolute uncertainty (in 2) in the resistance=
(II) An ammeter whose internal resistance is 53Ω reads5.25 mA when connected in a circuit containing a battery andtwo resistors in series whose values are 720Ω and480Ω What is the actual current when the ammeter is absent?
Chapter 26 Solutions
Physics for Scientists and Engineers with Modern Physics
Ch. 26.1 - Repeat Example 261 assuming now that the...Ch. 26.2 - You have a 10- and a 15- resistor. What is the...Ch. 26.3 - Write the equation for the lower loop abcdefga of...Ch. 26.4 - If the jumper cables of Example 2610 were...Ch. 26.5 - In 10 times constants, the charge on the capacitor...Ch. 26 - Explain why birds can sit on power lines safely,...Ch. 26 - Discuss the advantages and disadvantages of...Ch. 26 - If all you have is a 120-V line, would it be...Ch. 26 - Two lightbulbs of resistance R1 and R2 (R2 R1)...Ch. 26 - Household outlets are often double outlets. Are...
Ch. 26 - With two identical lightbulbs and two identical...Ch. 26 - If two identical resistors are connected in series...Ch. 26 - You have a single 60-W bulb on in your room. How...Ch. 26 - When applying Kirchhoffs loop rule (such as in...Ch. 26 - Compare and discuss the formulas for resistors and...Ch. 26 - For what use are batteries connected in series?...Ch. 26 - Can the terminal voltage of a battery ever exceed...Ch. 26 - Explain in detail how you could measure the...Ch. 26 - In an RC circuit, current flows from the battery...Ch. 26 - Given the circuit shown in Fig. 2634, use the...Ch. 26 - Figure 2635 is a diagram of a capacitor (or...Ch. 26 - Design a circuit in which two different switches...Ch. 26 - What is the main difference between an analog...Ch. 26 - What would happen if you mistakenly used an...Ch. 26 - Explain why an ideal ammeter would have zero...Ch. 26 - A voltmeter connected across a resistor always...Ch. 26 - A small battery-operated flashlight requires a...Ch. 26 - Different lamps might have batteries connected in...Ch. 26 - Prob. 1PCh. 26 - (I) Four 1.50-V cells are connected in series to a...Ch. 26 - (II) A 1.5-V dry cell can be tested by connecting...Ch. 26 - (II) What is the internal resistance of a 12.0-V...Ch. 26 - (I) A 650- and a 2200- resistor are connected in...Ch. 26 - (I) Three 45- lightbulbs and three 65- lightbulbs...Ch. 26 - (I) Suppose that you have a 680-, a 720-, and a...Ch. 26 - (I) How many 10- resistors must be connected in...Ch. 26 - (II) Suppose that you have a 9.0-V battery and you...Ch. 26 - Three 1.70-k resistors can be connected together...Ch. 26 - (II) A battery with an emf of 12.0 V shows a...Ch. 26 - (II) Eight identical bulbs are connected in series...Ch. 26 - (II) Eight bulbs are connected in parallel to a...Ch. 26 - (II) The performance of the starter circuit in an...Ch. 26 - (II) A close inspection of an electric circuit...Ch. 26 - (II) Determine (a) the equivalent resistance of...Ch. 26 - (II) A 75-W, 110-V bulb is connected in parallel...Ch. 26 - (II) (a) Determine the equivalent resistance of...Ch. 26 - (II) Whal is the net resistance of the circuit...Ch. 26 - (II) Calculate the current through each resistor...Ch. 26 - (II) The two terminals of a voltage source with...Ch. 26 - (II) Two resistors when connected in series to a...Ch. 26 - (III) Three equal resistors (R) are connected to a...Ch. 26 - (III) A 2.8-k and a 3.7-k resistor are connected...Ch. 26 - (III) Consider the network of resistors shown in...Ch. 26 - (III) You are designing a wire resistance heater...Ch. 26 - (I) Calculate the current in the circuit of Fig....Ch. 26 - (II) Determine the terminal voltage of each...Ch. 26 - (II) For the circuit shown in Fig. 2647, find the...Ch. 26 - (II) (a) A network of five equal resistors R is...Ch. 26 - (II) (a) What is the potential difference between...Ch. 26 - (II) Calculate the currents in each resistor of...Ch. 26 - (II) Determine the magnitudes and directions of...Ch. 26 - (II) Determine the magnitudes and directions of...Ch. 26 - (II) A voltage V is applied to n identical...Ch. 26 - (III) (a) Determine the currents I1, I2, and I3 in...Ch. 26 - (III) What would the current I1 be in Fig. 2653 if...Ch. 26 - (III) Determine the current through each of the...Ch. 26 - (III) If the 25- resistor in Fig. 2654 is shorted...Ch. 26 - (III) Twelve resistors, each of resistance R, are...Ch. 26 - (III) Determine the net resistance in Fig. 2656...Ch. 26 - (II) Suppose two batteries, with unequal emfs of...Ch. 26 - (I) Estimate the range of resistance needed to...Ch. 26 - (II) In Fig. 2658 (same as Fig. 2617a), the total...Ch. 26 - (II) Two 3.8-F capacitors, two 2.2-k resistors,...Ch. 26 - (II) How long does it take for the energy stored...Ch. 26 - (II) A parallel-plate capacitor is filled with a...Ch. 26 - (II) The RC circuit of Fig. 2659 (same as Fig....Ch. 26 - (II) Consider the circuit shown in Fig. 2660,...Ch. 26 - (III) Determine the time constant for charging the...Ch. 26 - (III) Two resistors and two uncharged capacitors...Ch. 26 - (III) Suppose the switch S in Fig. 2662 is closed....Ch. 26 - (I) An ammeter has a sensitivity of 35,00 /V. What...Ch. 26 - (I) What is the resistance of a voltmeter on the...Ch. 26 - (II) A galvanometer has a sensitivity of 45 k/V...Ch. 26 - (II) A galvanometer has an internal resistance of...Ch. 26 - (II) A particular digital meter is based on an...Ch. 26 - (II) A milliammeter reads 25 mA full scale. It...Ch. 26 - (II) A 45-V battery of negligible internal...Ch. 26 - (II) An ammeter whose internal resistance is 53 ...Ch. 26 - (II) A battery with E=12.0V and internal...Ch. 26 - (II) A 12.0-V battery (assume the internal...Ch. 26 - (III) Two 9.4-k resistors are placed in series and...Ch. 26 - (III) When the resistor R in Fig. 2664 is 35 , the...Ch. 26 - Suppose that you wish to apply a 0.25-V potential...Ch. 26 - A three-way lightbulb can produce 50 W, 100 W, or...Ch. 26 - Suppose you want to run some apparatus that is 65...Ch. 26 - For the circuit shown in Fig. 2618a, show that the...Ch. 26 - A heart pacemaker is designed to operate at 72...Ch. 26 - Prob. 70GPCh. 26 - A Wheatstone bridge is a type of bridge circuit...Ch. 26 - An unknown length of platinum wire 1.22 mm in...Ch. 26 - The internal resistance of a 1.35-V mercury cell...Ch. 26 - How many 12-W resistors, each of the same...Ch. 26 - A solar cell, 3.0 cm square, has an output of 350...Ch. 26 - A power supply has a fixed output voltage of 12.0...Ch. 26 - The current through the 4.0-k resistor in Fig....Ch. 26 - A battery produces 40.8 V when 7.40 A is drawn...Ch. 26 - In the circuit shown in Fig. 2668, the 33-...Ch. 26 - The current through the 20- resistor in Fig. 2669...Ch. 26 - (a) A voltmeter and an ammeter can be connected as...Ch. 26 - (a) What is the equivalent resistance of the...Ch. 26 - A flashlight bulb rated at 2.0 W and 3.0 V is...Ch. 26 - Some light-dimmer switches use a variable resistor...Ch. 26 - A potentiometer is a device to precisely measure...Ch. 26 - Electronic devices often use an RC circuit to...Ch. 26 - The circuit shown in Fig. 2676 is a primitive...Ch. 26 - Determine the current in each resistor of the...Ch. 26 - In the circuit shown in Fig. 2678, switch S is...Ch. 26 - Figure 2679 shows the circuit for a simple...Ch. 26 - Measurements made on circuits that contain large...Ch. 26 - A typical voltmeter has an internal resistance of...Ch. 26 - (II) An RC series circuit contains a resistor R =...
Additional Science Textbook Solutions
Find more solutions based on key concepts
Choose the best answer to each of the following. Explain your reasoning. What happens to the core of a high-mas...
The Cosmic Perspective Fundamentals (2nd Edition)
3.80 Two students are canoeing on a river. While heading upstream, they accidentally drop an empty bottle overb...
University Physics with Modern Physics (14th Edition)
11. (II) What is the linear speed, due to the Earth's rotation, of a point (a) on the equator, (b) on the Arcti...
Physics: Principles with Applications
The correct option.
College Physics: A Strategic Approach (3rd Edition)
What distinguishes a wave from an oscillation?
Essential University Physics (3rd Edition)
Write each number in scientific notation.
11. 0.000065
Applied Physics (11th Edition)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- Consider the circuit below. The battery has an emf of = 30.00 V and an internal resistance of r = 1,00 . (a) Find the equivalent resistance of the circuit and the current out of the battery. (b) Find the current through each resistor, (c) Find die potential drop across each resistor, (d) Find the power dissipated by each resistor, (e) Find the total power supplied by the batteries.arrow_forwardCheck Your Understanding Consider the electrical circuits in your home. Give at least two of circuits that must use a combination of series and parallel circuits to operate efficiently.arrow_forwardReview. When a straight wire is warmed, its resistance is given by R = R0,[1 + a(T T0)] according to Equation 27.20, where a is the temperature coefficient of resistivity. This expression needs to be modified if we include the change in dimensions of the wire due to thermal expansion. For a copper wire of radius 0.100 0 mm and length 2.000 m, find its resistance at 100.0C, including the effects of both thermal expansion and temperature variation of resistivity. Assume the coefficients are known to four significant figures.arrow_forward
- The circuit shown below can be used to measure the resistance of a platinum resistance thermometer (PRT). AB is a uniform resistance wire of length 1.00 m and C is a sliding contact on this wire. A standard resistor R is included in the circuit. The position of C is adjusted until the voltmeter V reads zero. (ii) The PRT consists of 9.00 m of wire of diameter 8.4 × 10-2 mm. The voltmeter reads 0 V when l1 = 0.422 m. If the standard resistor, R, has a resistance of 220 Ω, what is the resistivity of platinum? Show that you have checked that the value for the resistivity and its unit are sensible.arrow_forward(II) You buy a 75-W lightbulb in Europe, where electricityis delivered at 240 V. If you use the bulb in the United Statesat 120 V (assume its resistance does not change), how brightwill it be relative to 75-W 120-V bulbs? [Hint: Assumeroughly that brightness is proportional to power consumed.]arrow_forward(II) Eight identical bulbs are connected in series across a120-V line. (a) What is the voltage across each bulb? (b) Ifthe current is 0.45 A, what is the resistance of each bulb,and what is the power dissipated in each?arrow_forward
- (II) A 100-W lightbulb has a resistance of about 12 Q when cold (20°C) and 140 N when on (hot). Estimate the tem- perature of the filament when hot assuming an average temperature coefficient of resistivity a = 0.0045 (C°)-1.arrow_forward(b) 1. A platinum resistance sensor has a resistance of 100 2 at 0 °C and a temperature coefficient of resistance (oc) of 4 x 10 "C. If the resistance of the sensor is 125 O, find the corresponding temperature of the sensor. ii. A variable dielectric capacitive displacement sensor consists of two square metal plates of side 5 cm, separated by a gap of 1 mm. A sheet of dielectric material 1 mm thick and of the same area as the plates can be slide between them as shown in Figure Q.4b. Given that the dielectric constant of air is 1 and that of the dielectric material is 4, calculate the capacitance of the sensor when the input displacement x-0.0 cm, 2.5 cm and 5,0 cm. Figure Q4barrow_forward(e) In electrical circuits, Ohm's law can be mathematically modeled as I = V/R, whereas I is the current through the resistor, V is the voltage across the resistor, and R is the resistance of the resistor. A temperature-dependent resistor that has a resistance, R(T) = 107², was used in this specific circuit. Assuming a constant voltage of 10V, determine l's rate of change with time (in Amperes per minute) at 25°C if the temperature is increasing at a constant rate of 5 Kelvin per minute. Ans: -0.4 A/minarrow_forward
- (a) Calculate the magnitude (in A) and indicate the direction of flow of current in the figure below. E₂ = 23.0 V and r₂ = 0.70 0. magnitude direction E₁ = 12.0 V = = η = 1.0 Ω |--Select-- (b) Find the terminal voltage (in V) of each battery. V₁ V V₂ A V E2 = 18.0 V 1 = 0.5 Ω Are their values consistent with the direction of current flow? O Noarrow_forward(b) Consider two resistors, R₁ and R₂, connected in parallel. Derive the expression that gives the total resistance in the circuit, i.e. what single resistance would be equivalent to the two resistors connected in parallel.arrow_forward(4),(5)arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Physics for Scientists and Engineers, Technology ...PhysicsISBN:9781305116399Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningPrinciples of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Physics for Scientists and Engineers, Technology ...
Physics
ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Principles of Physics: A Calculus-Based Text
Physics
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
How To Solve Any Resistors In Series and Parallel Combination Circuit Problems in Physics; Author: The Organic Chemistry Tutor;https://www.youtube.com/watch?v=eFlJy0cPbsY;License: Standard YouTube License, CC-BY