If an electric field of magnitude 570 N C^–1, is applied in the copper wire, find the acceleration experienced by the electron.

A copper wire of cross-sectional area 0.5 mm² carries a current of 0.2 A. If the free electron density of copper is 8.4 x 10²⁸ m^-3 then compute the drift velocity of free electrons.

A potential difference across 24 Ω resistor is 12 V. What is the current through the resistor?

Describe the microscopic model of current and obtain general form of Ohm’s law.

Explain the equivalent resistance of a series and parallel resistor network.

Explain the determination of the internal resistance of a cell using voltmeter.

In a circuit containing internal resistance r. Find the power delivered.

Find the expression for the equivalent emf & internal resistance of the series combination of cells.

State Joule's law.

Explain Peltier effect.