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Unformatted text preview: Non-Ideal Battery Given: F i n d : 37 1 R ? V 41 2 R ? R 51 3 R ? r ? b c V V 56 4 R v 12 b c V V ? 2 I A 18 . ab I ? int P ? load P The points b and c on the diagram are the terminals of a battery with EMF and internal resistance r . (a) An ideal voltmeter is connected between b and c; it reads V c- V b = 12 V. What is the EMF of the battery? (b) What resistance would an ohmmeter connected across points a and c read? (c) An ideal ammeter is inserted between points a and b it reads 0.18 A. Determine the internal resistance of the battery? (d) What does the voltmeter connected across b and c read now? (e) Calculate the magnitude of the current through R 2 . (f) At what rate is thermal energy (heat) being produced inside the battery? (g) What is the power being provided by the battery to the external circuit (outside the battery)?...
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- Fall '10