What should be the current rating of a fuse to be used with an electric appliance of rating 1.5 kW-220 V?

How much heat energy is produced in 10 second in an electric iron having resistance 440 Ω, when a potential difference of 220 volt is applied across it?

The resistance of a conductor increases with- I: Increase in length II: Increase in volume III: Decrease in area

Earthing is done to

1 kWh =

Two resistors 4Ω and 2Ω are connected in series, and the potential difference of 12 V is applied across the combination. Then, the current through the circuit is:

A current of 0.5 A is drawn by a filament of an electric bulb for 10 minutes. The amount of electric charge that flows through the circuit is:

The electric current flows in a direction opposite to the direction of flow of _______.

The resistance of a conductor is said to be 1 ohm if

What would be the effect on the current if the resistance is increased while the voltage remained constant?

Electric current will stop flowing when the potential difference is

The SI unit of current is:

The atoms of different elements having same mass number, but different atomic numbers are called

The total number of nucleons is

Protium ,deuterium ,tritium are

Atoms with different number of protons but the same number of neutrons

An alpha particle consists of

Beta particles are

In emitting a β-particle,

The age of rocks and hence buried plants is estimated by the study of the rate of decay of

If n electrons pass through the cross-section of a conductor in time t, then the total charge passed through the conductor is given as

The electric current flows from a body at a higher potential to a body at a lower potential, and this is called

The potential at a point is defined as the work done in bringing a unit _________ charge from infinity to that point.

The potential difference between two points is said to be 1 volt if the work done in bringing 1 coulomb of charge from infinity to the point is

There is always some obstruction in the current which flows through a conductor like a metal wire, and this obstruction is called its

The resistance of a conductor depends on __________factors

The current flowing through a conductor is directly proportional to the potential difference V across its ends provided the temperature and physical conditions of the conductor remain the same. This is

________is defined as the reciprocal of resistance

_________________ the rate at which electrical energy is supplied by the source

1 horsepower (1 hp) =

_______ is the energy consumed by an electrical appliance of power 1 kW when it is used for one hour

An electrical appliance such as an electric bulb, geyser or heater is rated with