Current Electricity and Electrical InstrumentHard

Question

The power dissipated in the circuit shown in the figure is 30 Watts. The value of R is

Options

A.30 Ω

B.20 Ω

C.15 Ω

D.10 Ω

Solution

Total power dissipated is

= 30 watt
R = 10 Ω

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