An electric iron has a rating of `750 W, 220 V`. Calculate :
(i) current passing through it and
(ii) its resistance, when in use.

An electric iron has a rating of 750 W, 220 V. Calculate the current flowing through it .

Amongst iron, silver, nichrome, tungsten, copper, which metal / alloy should be used to make the (i) Heating element of electric geysers (ii) Filament of lncandescent bulbs. An electric iron has rating of 750W, 220V. Calculate: (i) Current required and (ii) Its resistance when it is in use.

Calculate electric current passing through 60W - 220V bulb. Find the resistance of the filament.

An electric bulb is rated as 250 V, 750 W. Calculate the : (i) Electric current flowing through it, when it is operated on a 250 V supply. (ii) Resistance of its filament.

A bulb is marked 220 V and 40 W. Calculate the current flowing through the bulb and its resistance.

An electric heater has a rating of 3 kW, 220 V . Calculate the following (i) Current. (ii) Resistance offered by the heater. (iii) Cost of running the heate for 10 hours at the rate of ₹ 3.50 per unit.