An automobile starter motor has an equivalent resistance of 0.075 Ω and is supplied by a 12.0 V battery that has a 0.015 Ω internal resistance. Part (a) What current, I, in amperes, does the battery supply to the motor? I = 133 Part (b) What is the terminal voltage, V, in volts, of the motor? V = 10.00 Part (c) What power, P, in kilowatts, does the motor consume? P =

An automobile starter motor has an equivalent resistance of 0.075 Ω and is supplied by a 12.0 V battery that has a 0.015 Ω internal resistance. Part (a) What current, I, in amperes, does the battery supply to the motor? I = 133 Part (b) What is the terminal voltage, V, in volts, of the motor? V = 10.00 Part (c) What power, P, in kilowatts, does the motor consume? P =

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter17: Current And Resistance

Section: Chapter Questions

Problem 10CQ: Power P0 = I0 V0 is delivered to a resistor of resistance R0. If the resistance is doubled (Rnew =...

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Concept explainers

Resistivity

Resistivity is a characteristic property of the conductor’s material that measures the extent to which the material opposes the flow of current. It is denoted by the Greek letter “rho”. Electrical resistivity, also known as specific resistance, depends on the nature of the material of the conductor and is unaffected by its dimensions.

Question

An automobile starter motor has an equivalent resistance of 0.075 Ω and is supplied by a 12.0 V battery that has a 0.015 Ω internal resistance.

Part (a) What current, I, in amperes, does the battery supply to the motor?

I = 133

Part (b) What is the terminal voltage, V, in volts, of the motor?

V = 10.00

Part (c) What power, P, in kilowatts, does the motor consume?

P =

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