A battery of internal resistance 4Ω is connected to the network of resistances as shown. In order to give the maximum power to the network, the value of R (in Ω) should be
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a
4/9
b
8/9
c
2
d
18
answer is C.
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Detailed Solution
The equivalent network isClearly, the network of resistances is a balanced Wheatstone bridge. So RAB is given byFor maximum power transfer
A battery of internal resistance 4Ω is connected to the network of resistances as shown. In order to give the maximum power to the network, the value of R (in Ω) should be