Answered: A and B. Battery A has an e.m.f. of 150…

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 34P: Two 1.50-V batterieswith their positive terminals in the same directionare inserted in series into a...

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Question

Two batteries A and B are joined in parallel. Connected across the battery
terminals is a circuit consisting of a battery C in series with a 70Ω resistor,
the negative terminal of C being connected to the positive terminals of A
and B. Battery A has an e.m.f. of 150 V and an internal resistance of 8.5Ω
, and the corresponding values for battery B are 120 V and 5.6Ω. Battery
C has an e.m.f. of 30 V and a negligible internal resistance. Determine (a)
the value and direction of the current in each battery and (b) the terminal
voltage of battery A.

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