A bulb is marked 100 watts and 220 volts. When the bulb is burning, its resistance and current flow in it...

A lamp of 100 W works at 220 volts What is its resistance and current capacity?

When bulbs are connected in series, same current flows through them.

If bulb rating is 100 walt and 220 V then determine (a) Resistance of filament (b) Current through filament (c ) If bulb operate at 110 volt power supply then find consumed by bulb.

A bulb has specification of one kilowatt and 250 volts , the resistance of bulb is

A light bulb has the rating 200W 220V. Find (i) resistance of the bulb filament (ii) rms value of current flowing through the filament.

Two bulbs of 500 watt and 300 watt work on 200 volt r.m.s. the ratio of their resistances will be –

An electric bulb rated for 500 watts at 100 volts is used in a circuit having a 200 volts supply. The resistance R that must be put in series with the bulb, so that the bulb delivers 500 watt is …………ohm.

An electric bulb is rated at 220V, 100W. What is its resistance?

An electric bulb is marked to 100 W, 220 V . If the supply voltage drops to 115 V , what is the heat end light energy produced by the bulb in 20 minutes. Calculate the current flowing through it.