Electric Curren...

Conversion of temperature into electric voltage is done with

For semiconductors, the major factor affecting the value of resistivity when temperature changes is

When a conductor is placed in an external electric field, the acceleration of its electrons will be

Resistors can be wire bound or carbon resistors. Wire bound resistors are generally made of

The dimension of the temperature coefficient of resistivity is​

The winding of a motor has a resistance of 80 ohms at 15°C. Find its resistance at 50° C. the temperature co-efficient of resistance is 0.004/°C​

On heating a conductor its resistance

Specific resistance of a conductor increases with

A steady current flows in a metallic conductor of non-uniform cross-section. The quantity/quantities constant along the length of the conductor is/are

A current of 2 ampere is passing through a metallic wire of cross-sectional area 2 x 10^-6 m². If the density of the charge carriers in the wire is 5 x 10²⁶ m^-3, then the drift velocity of the electrons will be​

The standard resistance coil are made of “manganin” because

If the potential difference V applied on a conductor is doubled, the drift velocity of electrons will become

When a conductor is placed in an electric field, the force experienced by its electrons will be

Resistance of a conductor depends on

A carbon resistor is marked in green, red, and orange bands. The approximate resistance of the resistor is 

Two special characteristics of the element of an electric heater:

The type of materials whose resistivity is affected on adding the impurity is known as

The average time that elapses between two successive collisions of an electron is called

Mobility of charge carriers in a conductor is given by​

Manganin and constantan have a low temperature coefficient of resistivity which means that