A 40 W -110 V flurescent tube is to be operated on 220 V -50 Hz AC supply Calcualate the choke reqirect for the purpose.

A 40W-110V bulb is to be used in 220V-50Hz AC. Calculate the inductance required for this purpose.

an 80V-800 W heater is to be operated on a 100V - 50 Hz supply. Calculate the inductance of the choke required.

A 80 V - 800 W heater is to be operated on a 100 V - 50 Hz a.c. supply. Calculate the inductance of the choke required.

An 80 V, 800 W heater is to be operated on a 100 V, 50 Hz supply. Calculate the inductane of the coil required.

A 120 V, 60 W lamp is to be operated on 220 V, 50 Hz supply mains. Calculate what value of pure inductance which would be required so that the lamp runs on correct value of power.

A light bulb is rated 100 W for 220 V ac supply of 50 Hz. Calculate the resistance of the bulb ,