Question: A current of 2A flows through a 20 resistor when connected across a battery. The same battery supplies a current of 0.5 A when

A current of 2A flows through a 20 resistor when connected across

A current of 2A flows through a 20 resistor when connected across a battery. The same battery supplies a current of 0.5 A when connected across a 90 resistor. The internal resistance of the battery is (a) 0.5 (c) 1/4 (b) 1/3 (d) 1

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