The voltage across an electric bulb is decreased by `2%` . Assuming that the resistance of the filament remains same, the power consumed will

The voltage across a bulb is decreased by 2%. Assuming that the resistance of the filament remains unchanged, the power of the bulb will

An electric bulb is rated 60 W , 220 V . The resistance of its filament is

How much current will an electric bulb draw from a 220 V source, if the resistance of the bulb filament is 1200 Omega ?

If the current in a electric bulb drops by 2% then the power decreases by

Due to voltage fluctuations, the temperature of an electric bulbs rises from 2000 K to 3000 K. Calculate the percentage rise in the electric power consumed.

Due to change in main voltage, the temperature of an electric bulb rises from 3000K to 4000K. What is the percentage rise in electric power consumed?

If the current in an electric bulb decreases by 0.5 % , the power in the bulb decreases by approximately

An electric bulb of 100 watt is connected to a supply of electricity of 220 V . Resistance of the filament is

A room heater is rated 500 W, 220V . (a) Find the resistance of its coil. (b) If the supply voltage drops to 200 V , what will be the power consumed? ( c) If an electric bulb rated 100 W, 220 V is connected in series with this heater, what will be the power consumed by the heater and by the bulb when the supply is at 220 V ?

An electric bulb is designed to draw P_(0) power at V_(0) voltage. If the voltage is V , it drawas power. Then