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Q.

A cell of internal resistance 2 Ω drives current through an external resistance R. The power delivered by the cell to the external resistance will be maximum when R (in ohm) is equal to

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answer is 2.

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Detailed Solution

As per maximum power theorem, external resistance should be equal to internal resistance.

R=r

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A cell of internal resistance 2 Ω drives current through an external resistance R. The power delivered by the cell to the external resistance will be maximum when R (in ohm) is equal to