How does the random motion of the electrons in a conductor get affected when potential difference is applied across its ends?

How does the mobility of electrons in a conductor change, if the potential difference applied across the conductor is doubled, keeping the length and temperature of the conductor constant ?

Can we say that all free electrons move in the same direction in a conductor when some potential difference is applied across it ?

Name the law which relates the current in a conductor to the potential difference across its ends.

Electrons in a conductor have no motion in the absence of a potential difference across it.

Derive the expression for the current density of a conductor in terms of the conductivity and applied electic field. Explain with reason how the mobility of electrons in a conductor changes when the potential difference applied is doubled, keeping the temperature of the conductor constant.

Three resistances 2 Omega, 3 Omega and 4 Omega are connected in parallel. The ratio of currents passing through them when a potential difference is applied across its ends will be

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

How much current is flowing throught a 1k Omega rsistor when a potential difference of 2V is applied across its end ?