Answer the following questions 1. A battery has an emf of 15.0 V. The terminal voltage ofthe battery is 11.6 V when it is delivering 20.0 W ofpower to an external load resistor R. (a) What is thevalue of R? (b) What is the internal resistance of thebattery?2. (a) What is the current in a 5.60-N resistor connected toa battery that has a 0.200-N internal resistance if the ter-minal voltage of the battery is 10.0 V? (b) What is theemf of the battery?3. Two 1.50-V batteries–with their positive terminals inthe same direction-are inserted in series into the bar-rel of a flashlight. One battery has an internal resistanceof 0.255 N, the other an internal resistance of 0.153 N.When the switch is closed, a current of 600 mA occursin the lamp. (a) What is the lamp's resistance? (b) Whatpercentage of the power from the batteries appears inthe batteries themselves, as represented by an increasein temperature?

“Since you have asked multiple question, we will solve the first question for you. If you want any…

1. A battery has an emf of 15.0 V. The terminal voltage of the battery is 11.6 V when it is delivering 20.0 W of power to an external load resistor R. (a) What is the value of R? (b) What is the internal resistance of the battery?

1. A battery has an emf of 15.0 V. The terminal voltage of the battery is 11.6 V when it is delivering 20.0 W of power to an external load resistor R. (a) What is the value of R? (b) What is the internal resistance of the battery?

College Physics

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ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Path of Least Resistance

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Question

Answer the following questions

1. A battery has an emf of 15.0 V. The terminal voltage of
the battery is 11.6 V when it is delivering 20.0 W of
power to an external load resistor R. (a) What is the
value of R? (b) What is the internal resistance of the
battery?
2. (a) What is the current in a 5.60-N resistor connected to
a battery that has a 0.200-N internal resistance if the ter-
minal voltage of the battery is 10.0 V? (b) What is the
emf of the battery?
3. Two 1.50-V batteries–with their positive terminals in
the same direction-are inserted in series into the bar-
rel of a flashlight. One battery has an internal resistance
of 0.255 N, the other an internal resistance of 0.153 N.
When the switch is closed, a current of 600 mA occurs
in the lamp. (a) What is the lamp's resistance? (b) What
percentage of the power from the batteries appears in
the batteries themselves, as represented by an increase
in temperature?

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