A battery of 10 V and internal resistance0.5 Ω isconnected across a variable resistance RThe value of Rfor which the power delivered is maximum is equal to[1992 - 2001]

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A battery of 10 V and internal resistance0.5 Ω isconnected across a variable resistance RThe value of Rfor which the power delivered is maximum is equal to[1992 - 2001]