The incomplete diagram of an electric bell is given in figure. Draw winding of coil on the core and complete the electric circuit in the diagram.

A charge moving in a magnetic field in a direction other than the direction of the magnetic field experiences a force called :

1. Lorentz force
2. Nuclear force
3. Electric force
4. Gravitational force

The unit of a magnetic field is :

1. NAm
2. Nm A^-1
3. N^-1mA
4. Nm^-1A^-1

In fleming's left hand rule, the forefinger indicates the direction of :

1. force
2. current
3. motion
4. magnetic field