Distinguish between drift velocity and mobility.

State microscopic form of Ohm’s law.

What is electric power and electric energy?

Write down the various forms of expression for power in electrical circuit.

What do you mean by internal resistance of a cell?

What is Peltier effect?

Define resistance.

What is the disadvantage of electric fuse?

What is the use of electric furnace?

Define draft velocity and write its relationship with the current flowing through it.

Explain with the help of graph the variation of conductivity with temperate for a metallic conductor?

When resistors are connected in series the effective resistance is increased. Why?

Nichrome and copper wire of same length and same radius are connected in series circuit I is passed through them. Which wire gets heated up more? Give reason.

Two 120 V light bulbs, one 25W and other of 100 W were connected in series across a 220 V line. One bulb burnt out instantaneously. which one was burnt and Why?