A stepdown transformer used in the line AC of 220 V to light up a bulb marked 12V, 30 W:-Calculate the number of turns of the coil in the winding connected to the bulb,if the other coil has 22000 turns

A stepdown transformer used in the line AC of 220 V to light up a bulb marked 12V, 30 W:-Suggest a method to modify the core so that the heat produced In the core can be minimised.

A transformer working on a 240 V AC supplies 12V. The number of turns in the primary coil is 1000. Calculate the number of turns in the secondary coil.

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

A transformer working on a 240 V Acsupplies a voltage of 8 V to an electric bell in the circuit. The number of turns in the primary coil is 4800 . Calculate the number of turns in the secondary coil.

Arun decided to construct a transformer to change 240 V to 12 V. Find the number of turns in the primary if 200 turns are used in the secondary ?

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

A transformer is used to change the alternating voltage to a high or low value. A power transmission line feeds input power of 2300 V to a stepdown transformer with its primary windings having 4000 turns. What should be the number of turns in the secondary in order to get output power at 230 V?

When the bulb 50W, 220V is connected to an 110V supply calculate the power generated.