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Two bulbs consume same power when operated at 200 V and 300 V respectively. When these bulbs are connected in series across a DC source of 400 V, then the ratio of power consumed across them is

a)

2/3

b)

3/2

c)

4/9

d)

9/4



Question ID - 150358 | SaraNextGen Top Answer

Two bulbs consume same power when operated at 200 V and 300 V respectively. When these bulbs are connected in series across a DC source of 400 V, then the ratio of power consumed across them is

a)

2/3

b)

3/2

c)

4/9

d)

9/4

1 Answer
127 votes
Answer Key / Explanation : (c) -

(c)

.

When bulbs are connected in series, the current  is same through each. As  is same in series),

so  .

127 votes


127