Question

12. 200 W and 100 W bulbs both meant for operation at
220 V are connected in series. When connected to a
220 V supply the power consumed by them will be
(ACC 2017)
(a) 33 W
(c) 100 W
(b) 66 W
(d) 300 W​

Answer 1

Answer:

Power consumed by a resistance is given by,P=V

2

/R.

This imply R=V

2

/P.

R

eq

=220

2

/100+220

2

/200

Net power consumed will be P=V

2

/R

eq

P=200/3 w

Explanation:

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