The resistance of the filament of a bulb increases with rise in temperature. a bulb rated 100 W, 220 V is connected across a 220 V supply. If the voltage drops 10%, then the power consumed by bulb will be
100 W
more than 81 W
less than 81 W
81 W
A
less than 81 W
B
81 W
C
100 W
D
more than 81 W
Open in App
Solution
Verified by Toppr
For a bulb rated 100 W, 220 V, resistance is
Was this answer helpful?
1
Similar Questions
Q1
The resistance of the filament of a bulb increases with rise in temperature. a bulb rated 100 W, 220 V is connected across a 220 V supply. If the voltage drops 10%, then the power consumed by bulb will be
View Solution
Q2
The resistance of the filament of a lamp increases with the increase in temperature. A lamp rated 100W and 220V is connected across 220V power supply. If the voltage drops by 10%, then the power of the lamp will be:
View Solution
Q3
A light bulb has the rating 100 W, 220 V. If the supply voltage is 110 V, then power consumed by the bulb is
View Solution
Q4
Two electric bulbs, rated at (25 W, 220 V) and (100 W, 220 V), are connected in series across a 220 V voltage source. If the 25 W and 100 W bulbs draw powers p1 and p2
View Solution
Q5
An electric bulb is rated (100W,220V). If it consumes 25W power, then the applied voltage across the bulb is