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Question

Physics Question on Current electricity

The total power dissipated in watt in the circuit shown here is

A

40 W

B

54 W

C

4 W

D

16 W

Answer

54 W

Explanation

Solution

Total power dissipated =V2R=(18)(18)6=\frac{ V ^{2}}{ R }=\frac{(18)(18)}{6}
=54W=54\, W