Electricity Tes...

The north pole of a magnet is brought near a stationary positively charged conductor. The north pole exerts a force, which will

A cylindrical bar magnet is kept along the axis of a circular coil. If the magnet is rotated about its axis, then

A transformer is used

The direction of magnetic field at a point due to an infinitely long wire carrying current is

Charge Q is divided into two parts, which are then kept some distance apart. The force between them will be the highest, if the two parts are

Power is transmitted from a power house on high voltage AC because

DC can be converted into AC with the help of

Molten sodium chloride conducts electricity due to the presence of

A small piece of unmagnetised substance gets repelled when it is brought near a powerful magnet. The substance can be