Find the value of R for maximum power transfer in the
circuit shown in figure. Find the maximum power
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Step-by-step explanation:
Redrawing the given circuit to its equivalent circuit
we get the equivalent resistance r
eq
as
r
eq
=
3
4r
Maximum power, P is generated when internal resistance, r' of source is equal to total external resistance r
eq
Hence,
r
eq
=r
′
3
4r
=40
r=30Ω
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