Ohms Law: Copper wires in houses typically have a diameter of about 1.5 mm. How long a wire would have a 1.0 Ω resistance? Note that ??????? = 1.68 ? 10−8 Ω . m
Q: If the 0.185 mm diameter tungsten filament in a light bulb is to have a resistance of 0.103 Ω at…
A: Given data: Diameter (d) = 0.185 mm = 0.185×10-3 m Resistance (R) = 0.103 Ω Resistivity (ρ) =…
Q: what diameter must be chosen for the new wire?
A: Given: Initial length of wire is Li=4.635 m Initial diameter of wire is di=6.53 mm Length of new…
Q: What length of copper (ρ = 1. 78 x 10−8Ωm) wire 1.2 mm in diameter is needed to make a 20-Ω resistor…
A: For copper wire, the resistance of a wire can be determined as, Here, ρc, Lc and A represent the…
Q: Three resistors, 28, 46, and 76 Ω, are connected in series, and a 0.49-A current passes through…
A: (a) Since the resistors are connected series, the equivalent resistance is the sum of the given…
Q: What is the equivalent resistance between points a and b? What voltage would a power source need to…
A: Equivalent resistance in series R = R1 + R2 Equivalent resistance in parallel 1/R = 1/R1 + 1/R2
Q: Where a 9 V battery is connected to a network of resistors with R1 = 72 Ω, R2 = 132 Ω, R3 = 18 Ω,…
A: Answer: The correct option is a.) 0.0625 A. Explanation: Given, e = 9V R1 = 72Ω, R2 = 132Ω, R3 =…
Q: In the circuit segment shown if /= 7 mA and Q = 50 µC, what is the potential difference, VA - VB %3D…
A:
Q: If the 0.190 mm diameter tungsten filament in a light bulb is to have a resistance of 0.122 N at…
A:
Q: 12 V 6Ω ΧΩ What is the equivalent resistance of the two resistors in parallel if X is 7? Answer:
A:
Q: What is the resistance of Part A A 1.1-m-long gold wire that is 0.50 mm in diameter? Express your…
A:
Q: A certain wire has a resistance of 140 Ω. What is the resistance of a second wire, made of the same…
A:
Q: You have three resistors R1 = 422 Ohms, R2 = 271 Ohms & R3 = 426 Ohms. What is the maximum…
A:
Q: Three resistors, R1 = 17.3, R2 = 13.2, R3 = 78.0, are connected in series across a 16.6 V battery.…
A:
Q: What is the voltage between points a andb (AVab = Vb-Va) if R1 = 4.00 Q, R2 and R3 are unknown,…
A:
Q: The battery voltage is 66.3 V, and the resistances are R1 = 140 Ohms; R2 = 153 Ohms; R3 = 117 Ohms;…
A:
Q: The emf of a battery is 12.0 volts. When the battery delivers a current of 0.500 ampere to a load,…
A: Given data: The emf of battery is ε=12.0 V. The current delivered to load is I=0.5 A. The potential…
Q: The four resistors in the figure have an equivalent resistance of 16Ω. The resistances are as…
A:
Q: )If a certain silver wire has a resistance of 8.40 Ω at 16.0°C, what resistance will it have at…
A:
Q: In (Figure 1) the battery has emf 43.0 V and negligible internal resistance. R1 = 7.00 Ω . The…
A:
Q: Problem 12: A piece of 12-gauge copper wire has a length of 4.25 m. The tables provided may be a…
A:
Q: If the 0.140 mm diameter tungsten filament in a light bulb is to have a resistance of 0.290 Ω at…
A:
Q: If the 0.100-mm diameter tungsten filament in a light bulb is to have a resistance of 0.200 Ω at…
A: Given - Diameter of tungsten filament ,d = 0.100 mm =0.100 x 10-3 m Resistance of tungsten…
Q: If the unknown resistor, R, is 20 Q, what is the voltage drop across that resistor, R? 10 0 10Ω. 10…
A: Solution:Here R1, R2 are in series thus…
Q: The battery voltage is 66.9 V, and the resistances are R1 = 163 Ohms; R2 = 83 Ohms; R3 = 167 Ohms;…
A: Given,
Q: If the 0.100 mm diameter tungsten filament in a light bulb is to have a resistance of 0.162 2 at…
A:
Q: Suppose you wish to fabricate a uniform wire from 1.10 g of copper. The wire is to have a resistance…
A:
Q: 12.0 Ω Μ Μ 5.00 Ω 4.00 Ω Μ 6.00 Ω 8.00 Ω (a) Find the equivalent resistance between point a and b. Ω…
A:
Q: (a) What is the resistance of a 315 Ω, a 2.50 kΩ, and a 4.00 kΩ resistor connected in series? Ω (b)…
A:
Q: R2 R1 R3 RA
A: Let the current produced by the battery be I. In the circuit, R3 and R4 are in parallel. Find the…
Ohms Law: Copper wires in houses typically have a diameter of about 1.5 mm. How long a wire would have a 1.0 Ω resistance? Note that ??????? = 1.68 ? 10−8 Ω . m
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images
- If the 0.145 mm diameter tungsten filament in a light bulb is to have a resistance of 0.185 Ω at 20.0°C, how long should it be? The resistivity of tungsten at 20.0°C is 5.60 10-8 Ω · mA current of 3.0 A flows through a resistor with a voltage difference of 143 V across it. What is the resistance of this resistor? Ω?An electric space heater has a resistance of 8.10 ohms. How much energy does it use when connected to an electrical outlet with a voltage of 110V for 30 minutes?
- A cylindrical conductor with resistivity ρ, length L, and radius r , has resistance R0=302Ω. If the resistivity and the length of the conductor both have their original values, but instead the radius of the conductor is increased by a factor of 5, what is the new value, in ohms, of the resistance?What is the terminal voltage (in V) of a large 1.70 V carbon-zinc dry cell used in a physics lab to supply 1.70 A to a circuit, if the cell's internal resistance is 0.250 Ω? b) How much electrical power (in W) does the cell produce? c) What power (in W) goes to its load?A battery has an emf of ε = 19 V, an internal resistance r = 28 22, and is connected to a resistor of R = 75 22. Express the current I through the circuit in terms of ε, r and R. Calculate the numerical value of I in A. Express the terminal voltage 4V of the battery in terms of I and R. Calculate the numerical value of 4V in V.
- a) What is the terminal voltage (in V) of a large 1.35 V carbon-zinc dry cell used in a physics lab to supply 1.80 A to a circuit, if the cell's internal resistance is 0.300 Ω? b) How much electrical power (in W) does the cell produce? and c) What power (in W) goes to its load?Three resistors are connected as shown to a battery. The value of the resistors are: R1 = 1.25KΩ R2 = 1.5kΩ and R3 = 3kΩ. The battery voltage is measured to be 45V. (i) What is the equivalent resistance for the circuit? (ii) What is the voltage drop over R2?Determine the equivalent resistance between terminals a and b. R1 10 Ohms R3 ww 5 Ohms R4 www 13 Ohms Ο 13.0741 Ω Ο 14.9765 Ω 13.2543 Q O 13.9765 Q a R2 12 Ohms R5 www 7 Ohms R6 www 6 Ohms -b