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MHT CET Physics question

PhysicsCurrent ElectricityMHT CET

In a closed circuit, the e. m. f. and internal resistance of the generator are E and r respectively. If the external resistance in the circuit is R, then Ohm’s law has the form

Answer: (D)

Solution

The total resistance of the closed circuit is R + r, so I = E/(R + r); (a) is

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Question ID VK-044905