1.

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

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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