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Parallel Circuits - Technical MCQs

Q1:

The total power in the given circuit is ___.

A 4.8 mW

B 18 mW

C 7.2 mW

D 30 mW

ANS:D - 30 mW

1/Rt=1/20+1/8+1/30.
=5/24

Rt=24/5
I= V/R
12*5/24=5/2.

P=VI.
=12*5/2,
=30mW.