An electric bulb marked 40 W- 220 V is connected with an electric supply of 110 V. Its electric power is |
|||||||
(a) |
(b) |
40 W |
(c) |
20 W |
(d) |
10 W |
|
An electric bulb marked 40 W- 220 V is connected with an electric supply of 110 V. Its electric power is |
|||||||
(a) |
(b) |
40 W |
(c) |
20 W |
(d) |
10 W |
|