Essential University Physics
4th Edition
ISBN: 9780134988566
Author: Wolfson, Richard
Publisher: Pearson Education,
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Chapter 24, Problem 17E
To determine
The diameter tube.
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6). What is the magnitude of the potential difference across the 20-02 resistor?
10 Ω
11 V -
-Imm
20 Ω
10 Ω
5.00
10 Ω
a.
3.2 V
b. 7.8 V
C.
11 V
d.
5.0 V
e.
8.6 V
Chapter 24 Solutions
Essential University Physics
Ch. 24.1 - Prob. 24.1GICh. 24.2 - Two wires carry the same current I. Wire A has a...Ch. 24.3 - Prob. 24.3GICh. 24.4 - You put a variable resistance across a battery...Ch. 24.5 - Todays power tools are often cordless, powered by...Ch. 24 - Explain the difference between current and current...Ch. 24 - A constant electric field generally produces a...Ch. 24 - Good conductors of electricity are often good...Ch. 24 - Does an electric stove burner draw more current...Ch. 24 - A person and a cow are standing in a field when...
Ch. 24 - You put a 1.5-V battery across a piece of...Ch. 24 - Prob. 7FTDCh. 24 - A 50-W and a 100-W lightbulb are both designed to...Ch. 24 - Equation 24.8a suggests that no power can be...Ch. 24 - Whats wrong with this news report: A power-line...Ch. 24 - A wire carries 1.5 A. How many electrons pass...Ch. 24 - A 12-V car battery is rated at 80 ampere-hours,...Ch. 24 - Biologists measure the total current due to...Ch. 24 - The National Electrical Code specifies a maximum...Ch. 24 - The electric field in an aluminum wire is 85 mV/m....Ch. 24 - What electric field is necessary to drive a 7.5-A...Ch. 24 - Prob. 17ECh. 24 - A 1.0-cm-diameter rod carries a 50-A current when...Ch. 24 - Use Table 24.1 to determine the conductivity of...Ch. 24 - Find the resistance of a heating coil that draws...Ch. 24 - Prob. 21ECh. 24 - Whats the current in a 47-k resistor with 110 V...Ch. 24 - The third rail that carries electric power to a...Ch. 24 - What current flows when a 45-V potential...Ch. 24 - A uniform wire of resistance R is stretched until...Ch. 24 - A cars starter motor draws 125 A with 11 V across...Ch. 24 - A 4.5-W flashlight bulb draws 750 mA. (a) At what...Ch. 24 - A watch uses energy at the rate of 240 W. What...Ch. 24 - A 35- electric stove burner consumes 1.5 kW of...Ch. 24 - An incandescent lightbulb draws 625 mA, while an...Ch. 24 - Though rare, electrocution has been reported under...Ch. 24 - You touch a defective appliance while standing on...Ch. 24 - You have a typical resistance of 100 k. (a) How...Ch. 24 - Example 24.3: Modern houses are often equipped...Ch. 24 - Example 24.3: The maximum current rating for...Ch. 24 - Prob. 36ECh. 24 - Example 24.3: The solar corona is the Sun’s hot...Ch. 24 - Prob. 38ECh. 24 - Example 24.4: A potential difference of 233 mV is...Ch. 24 - Example 24.4: Find the length of the electrolyzer...Ch. 24 - Example 24.4: Magnetic effects involving Jupiter’s...Ch. 24 - An ion channel in a cell membrane carries 2.4 pA...Ch. 24 - A lightbulb filament has diameter 0.050 mm and...Ch. 24 - A gold film in an integrated circuit measures 1.85...Ch. 24 - A copper wire joins an aluminum wire whose...Ch. 24 - Prob. 46PCh. 24 - In a study of proteins mediating cell membrane...Ch. 24 - The single most important use of the element gold...Ch. 24 - The maximum safe current in 12-gauge...Ch. 24 - Silver and iron wires of the same length and...Ch. 24 - You have a cylindrical piece of material 2.4 cm...Ch. 24 - How must the diameters of copper and aluminum wire...Ch. 24 - Youre writing the instruction manual for a power...Ch. 24 - An implanted pacemaker supplies the heart with 72...Ch. 24 - A rectangular pad made of gold is used as a...Ch. 24 - Each pulse produced by the Taser described in the...Ch. 24 - The Nissan Leaf is an all-electric car powered by...Ch. 24 - An electric heater is tested by immersing it in...Ch. 24 - (a) Determine the power associated with the...Ch. 24 - At a particular point in a material with...Ch. 24 - A thermally insulated container of seawater...Ch. 24 - Youre heading out for spring break, but your car...Ch. 24 - Two cylindrical resistors are made from the same...Ch. 24 - Youre working on a new high-speed rail system. It...Ch. 24 - A 100%-efficicnt electric motor is lifting a 15-N...Ch. 24 - A power plant produces 1000 MW to supply a city 40...Ch. 24 - Prob. 67PCh. 24 - A 240-V electric motor is 90% efficient, meaning...Ch. 24 - A metal bar has rectangular cross section 5.0 cm...Ch. 24 - An immersion-type heating coil is connected to a...Ch. 24 - Prob. 71PCh. 24 - The current density in a particle beam with...Ch. 24 - You work for an automobile manufacturer developing...Ch. 24 - During the brownout, the current in conductors...Ch. 24 - Which of the following occurs in the conductors of...Ch. 24 - During the brownout, the power dissipated in...Ch. 24 - Prob. 77PP
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- 2). How much energy is stored in the 50-μF capacitor when Va - V₁ = 22V? 25 µF b 25 µF 50 µFarrow_forward9). A series RC circuit has a time constant of 1.0 s. The battery has a voltage of 50 V and the maximum current just after closing the switch is 500 mA. The capacitor is initially uncharged. What is the charge on the capacitor 2.0 s after the switch is closed? R 50 V a. 0.43 C b. 0 66 C c. 0.86 C d. 0.99 C Carrow_forward1). Determine the equivalent capacitance of the combination shown when C = 12 pF. +11/20 2C C Carrow_forward
- 3). When a capacitor has a charge of magnitude 80 μC on each plate the potential difference across the plates is 16 V. How much energy is stored in this capacitor when the potential difference across its plates is 42 V? a. 1.0 mJ b. 4.4 mJ c. 3.2 mJ d. 1.4 mJ e. 1.7 mJarrow_forward5). A conductor of radius r, length & and resistivity p has resistance R. It is melted down and formed into a new conductor, also cylindrical, with one fourth the length of the original conductor. The resistance of the new conductor is a. 1 R 161 b. 1 R C. R d. 4R e. 16Rarrow_forward8). Determine the magnitude and sense (direction) of the current in the 10-Q2 resistor when I = 1.8 A. 30 V L 50 V 10 Ω 20 Ω a. 1.6 A right to left b. 1.6 A left to right C. 1.2 A right to left d. 1.2 A left to right e. 1.8 A left to right R PGarrow_forward
- 7). Determine the current in the 10-V emf. 5.0 0 w 10 V 5.0 0 15 V 5.0 Ω a. 2.3 A b. 2.7 A c. 1.3 A d. 0.30 A e. 2.5 Aarrow_forward4). What is the resistance of a wire made of a material with a resistivity of 3.2 is 2.5 m and its diameter is 0.50 mm? a. 0.16 Ω b. 0.10 2 C. c. 1.28 Ω d. 0.41 2 e. 0.81 2 108 m if its lengtharrow_forwardA flat circular coil with 135 turns, a radius of 2.28 x 10-2 m, and a resistance of 0.618 is exposed to an external magnetic field that is directed perpendicular to the plane of the coil. The magnitude of the external magnetic field is changing at a rate of AB/At = 0.615 T/s, thereby inducing a current in the coil. Find the magnitude of the magnetic field at the center of the coil that is produced by the induced current. Numberarrow_forward
- please solve the question attachedarrow_forwardSketch a sine wave depicting 3 seconds of wave activity for a 5 Hz tone. Sketch the resulting complex wave form that results from the combination of the following two waves. Is this wave periodic or aperiodic? USE GRAPH PAPER!arrow_forwardRequired information A bungee jumper leaps from a bridge and undergoes a series of oscillations. Assume g = 9.78 m/s². If a 60.0-kg jumper uses a bungee cord that has an unstretched length of 30.1 m and she jumps from a height of 45.2 m above a river, coming to rest just a few centimeters above the water surface on the first downward descent, what is the period of the oscillations? Assume the bungee cord follows Hooke's law.arrow_forward
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