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A battery of emf 8V and internal resistance r is connected to a load resistance of 5Ω. Then, power at load resistance will be maximum if the value of internal resistance r is(a) 5 Ω(b) 10 Ω(c) 15 Ω(d) 20 Ω |
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Answer» Answer is : (a) 5 Ω Output power will be maximum, if internal resistance of battery is equal to external resistance or load resistance, hence r = 5\(\Omega\). |
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