A battery has an emf of V and an internal resistance of r. What resistance R, when

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A battery has an emf of V and an internal resistance of r. What resistance R, when connected across the terminals of this battery, will cause the terminal voltage of the battery to be 1/2V?
(a) R = 1/2 r
(b) R = 2r
(c) R = 4r
(d) R = r
(e) R = 1/4 r

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Physics

ISBN: 978-1118486894

10th edition

Authors: David Young, Shane Stadler

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Question Posted: Feb 14, 2017 02:36 AM

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A battery has an emf of V and an internal resistance of r. What resistance R, when

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d The internal resistance r of the battery and the r...View the full answer

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