Current Electricity and Electrical InstrumentHard
Question
R = 0The value of the resistance R in figure is adjusted such that power dissipated in the 2 resistor is maximum. Under this condition
Options
A.R = 0
B.R = 8Ω
C.power dissipated in the 2Ω resistors is 72 W
D.power dissipated in the 2Ω resistors is 8 W
Solution
As power in 2Ω is maximum when the current in it is maximum. Current in it will maximum when the value of Req is minimum.
∴ R = 0
∴ R = 0
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