An ideal battery has an emf of 12 V. If it is connected to a circuit and creates a current of 4.0 A, what is the power? O a. 48 W O b. 0.3 W O c. cannot tell without knowing the resistance of the circuit. O d. 36 W O e. 3.0 W

An ideal battery has an emf of 12 V. If it is connected to a circuit and creates a current of 4.0 A, what is the power? O a. 48 W O b. 0.3 W O c. cannot tell without knowing the resistance of the circuit. O d. 36 W O e. 3.0 W

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter21: Current And Direct Current Circuits

Section: Chapter Questions

Problem 33P: A battery has an emf of 15.0 V. The terminal voltage of the battery is 11.6 V when it is delivering...

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Question

An ideal battery has an emf of 12 V. If it is connected to a circuit and creates a current of
4.0 A, what is the power?
O a. 48 W
O b. 0.3 W
O C.
O d. 36 W
cannot tell without knowing the resistance of the circuit.
O e. 3.0 W

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