Magnetic Effect...

Why is parallel arrangement used in domestic wiring?

A magnetic field is produced by the current passing through a long straight wire. When will the strength of the magnetic field increase?

Analyze the given statements and choose the correct option.

Statement 1 : When the current is represented by a straight line, the magnetic field lines will be circular.

Statement 2 : According to Fleming's left-hand rule, the direction of the force is parallel to the magnetic field.

How will crowding the wires of a solenoid, more closely together, will affect the strength of the field inside it?

You are looking into a solenoid, at its S-pole, along its axis. From your view point, the direction of the current in the solenoid is _______:

Two compass needles are placed near a current carrying wire at points P and Q as shown in the figure. What can be concluded?

You are looking along the axis of a solenoid, and the current from your position is clockwise. The end of the solenoid facing you is a _____ pole.

If the index finger points towards the north and the middle finger towards the east, when using Flemings left-hand rule, what will be the direction of motion or that of the force acting on the conductor?

The frequency of A.C mains in India is

When a conductor carrying an electric current is free to move in a magnetic field, the direction in which it will move is given by: