An electric bulb rated for 500 W at 100V is used in a circuit having a 200 V supply. The resistance 
that must be put in series with the bulb, so that the bulb drawn 500 W is
a)
18
b)
20
c)
40
d)
700
An electric bulb rated for 500 W at 100V is used in a circuit having a 200 V supply. The resistance that must be put in series with the bulb, so that the bulb drawn 500 W is
a)
18
b)
20
c)
40
d)
700
Question ID - 151725 | SaraNextGen Top Answer
An electric bulb rated for 500 W at 100V is used in a circuit having a 200 V supply. The resistance that must be put in series with the bulb, so that the bulb drawn 500 W is
a)
18
b)
20
c)
40
d)
700
|
An electric bulb rated for 500 W at 100V is used in a circuit having a 200 V supply. The resistance |
|||||||
|
a) |
18 |
b) |
20 |
c) |
40 |
d) |
700 |
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