What are carbon resistors? What does the colour indicates?

Derive an expression of drift velocity and write the relation between drift velocity and mobility.

How does one can understand the temperature dependence of resistivity of a conductor?

(a) Distinguish between electric cells and batteries.
(b) Explain its function.

What is meant by electromotive force?

Derive a relation between internal resisance and emf of a cell.

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.

What is superconductivity?

Draw the variation between voltage and current for
(a) an Ohmic conductor and
(b) a Non - Ohmic conductor

Repairing the electrical connection with the wet skin is always dangerous. Give reason.

What do you know from coloured rings found on the resistor?

Distinguish electromotive force from potential difference.