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
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 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
|
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 |
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a) |
2/3 |
b) |
3/2 |
c) |
4/9 |
d) |
9/4 |
1 Answer - 5876 Votes
3537
Answer Key : (c) -
Answer Link|
(c)
When bulbs are connected in series, the current so |
.
is same through each. As 
is same in series),
.