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A battery of emf 5 V and internal resistance 2.0 ohm is connected to an external resistance . If the current in the circuit is 0.4 A, the terminal voltage of the battery is :

A battery of emf 5 V and internal resistance 2.0 ohm is connected to an external resistance . If the current in the  circuit is 0.4 A, the terminal voltage of the battery is :

Grade:10

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