7. When the resistor R in figure is 350, the high-resistance voltmeter reads 9.7 V. When R is replaced by a 141 resistor
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7. When the resistor R in figure is 350, the high-resistance voltmeter reads 9.7 V. When R is replaced by a 141 resistor
7. When the resistor R in figure is 350, the high-resistance voltmeter reads 9.7 V. When R is replaced by a 141 resistor, the voltmeter reading drops to 8.1 V. What are the emf and internal resistance of the battery? V ww R th
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