Magnetic Effect...

A beam of protons is moving horizontally towards you. As it approaches you, it passes through a magnetic field which is directed upwards. As you see it, the magnetic field will deflect the beam to the:

Match the following:

Current is flowing through a conductor and creates a magnetic field. Assume that this is the only source of the magnetic field. Reversing a current in a straight conductor with no change to the magnitude(ampere value) will cause a _________. 

The diagram shows an extra lamp wired into an existing $$220$$ $$V\ A.C.$$ lighting system. To operate extra lamp independently a switch should be placed at.

In the given diagrams, compasses are used to plot the magnetic field around a bar magnetic field around a bar magnet with poles marked N (North) and S (South). Which of the following diagrams correctly shows the expected field pattern?

The magnetic lines of force inside a bar magnet.

Magnetic field outside a solenoid is:

The magnetic field around a current-carrying coil lasts

Why is the switch for any electrical appliance always fitted on to the live wire ? 

The magnetic field around a current carrying coil.