How much is the current flowing through a heater rated at 2kW when connected to a 100 V d.c. supply?

Calculate the current flowing through a heater rated at 2kW when connected to a 300V d.c. supply.

Calculate the current flowing through a heater rated at 2 kW when connected to a 300V d.c. supply.

How much current is flowing through a 1kOmega resistor when a potential difference of 2 V is applied across its end ?

An electric room heater draws a current of 2.4A from the 120V supply line. What current will his room heater draw when connected to 240V supply line?

How much current flows through a 2 k Omega resistor when a potential difference of 4 V is applied across its ends ?

A heater A gives out 300 W of heat when connected to a 200 V d.c supply . A second heater B gives out 600 W when connected to a 200 v.d.c. supply . If a series combination of the two heaters is connected to a 200 V d.c. supply the heat output will be

There is an ideal inductor which when connected to 100 V - 50 Hz supply draws a current of 8A. There is an ideal resistor which when connected to 100 V - 50 Hz supply draws a current of 10 A . What current will flow in the circuit when the above described inductor and resistor are connected in series to a supply of 100 V -40 Hz ?

How much current flows through a 2kOmega resistor when a potential difference of 4V is applied across its ends?

A bulb is connected to a 100 V DC supply . It is found that the current of 5 A flows in the circuit. The same bulb is connected to an AC supply at 120 V . The frequency of source is 50 Hz. Calculate the inductance of coil required so that the lamp glows in an AC circuit too.

Two heatere are marked 200V, 300W and 200V, 600W. If the heaters are combined in series and the combination connected to a 200V d.c. supply. Which heater will produce more heat?