Define the phenomenon overloading.

 

What will you do if you see a person coming in contact with a live wire?

What type of core should be put inside a current-carrying solenoid to make an electromagnet?

Distinguish between a bar magnet and an electromagnet.

State the characteristics of magnetic field lines.

A switch is always connected in

1. earth wire

2. neutral wire

3. live wire

State the principle used to determine the force experienced by a conductor carrying current in uniform magnetic field ?

Draw the pattern of magnetic field lines of a current carrying solenoid. What does the pattern of field lines inside the solenoid indicate? Write one application of magnetic field of current carrying solenoid.

Explain Direct and Alternating current.

Why does a current carrying conductor kept in a magnetic field experience force? On what factors does the direction of this force depend? Name and state the rule used for determination of direction of this force.