Magnetic Effect...

Of the following figure, the lines of magnetic induction due to a magnet $$SN$$, are given by :

Which part  has maximum attraction in a magnet ?

A soft iron bar is enclosed by a coil of insulated copper wire as shown in figure. When the plug of the key is closed, the face B of the iron bar marked as:

On the basis of following features identify the correct option 
I. They always start from north pole and end at the south pole of the magnet outside the magnet.
II. They never intersect each other.

Household electrical appliances are joined using .......... combination of resistors.

Study involving both electricity and magnetism is called ______.

The figure shows a circuit containing a coil wound over a long and hollow thin tube. Copy the diagram and show the polarity required by each face of the solenoid.

When a solenoid that is carrying current is freely suspended it comes to rest along a particular direction. Why does this happen ?

What is the relationship between an electric current and a magnetic field?

A wire is placed between the poles of two fixed bar magnets as shown. A small current in the wire is into the plane of the paper. The direction of the magnetic force on the wire is