An electric bulb is rated 220 V – 100 W. The power consumed by it when operated on 110 V will be
a)
75 W
b)
40 W
c)
25 W
d)
50 W
An electric bulb is rated 220 V – 100 W. The power consumed by it when operated on 110 V will be
a)
75 W
b)
40 W
c)
25 W
d)
50 W
Question ID - 151095 | SaraNextGen Top Answer
An electric bulb is rated 220 V – 100 W. The power consumed by it when operated on 110 V will be
a)
75 W
b)
40 W
c)
25 W
d)
50 W
|
An electric bulb is rated 220 V – 100 W. The power consumed by it when operated on 110 V will be |
|||||||
|
a) |
75 W |
b) |
40 W |
c) |
25 W |
d) |
50 W |
1 Answer
127 votes
Answer Key / Explanation : (c) -
|
(c) Resistance of electric bulb
Power consumed at 110 V,
|
where subscripts denote for rated parameters.
127 votes
Answer Link
127