A bulb of power 40W is designed to öperate at 240V. Calculate resistance of the filament in the bulb.

An electric bulb marked 500W,250 V is connected to a 250 V supply. Calculate the resistance of the bulb.

An electric bulb is labelled 40W, 200V. What is the resistance of the filament?

An electric iron has the markings 880 W and 220 V. Calculate the resistance of the coil inside the iron

Two bulbs of 500W and 100W are connected parallely in a circuit of 250 V. Find out the resistance of filaments in each bulb.

Bulbs marked 200V and 500 W are shown in the picture. Calculate the resistance of each bulb in the circuit.

Which material is used as filament of bulb ?