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
Answers
Answered by
2
Answer:
66w
Explanation:
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
Please mark me As Brainliest,
Answered by
0
Explanation:
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
Similar questions