Advertisements
Advertisements
प्रश्न
Select the correct option:
A bar magnet is rubbed on a bar of steel along its length 20 times. The bar of steel gets magnetised due to the process of:
विकल्प
induction
conduction
friction
none of the these
Advertisements
उत्तर
conduction
APPEARS IN
संबंधित प्रश्न
If you hold a coil of wire next to a magnet, no current will flow in the coil. What else is needed to induce a current?
Explain the following :
When two pins are hung by their heads from the same pole of a magnet, their pointed ends moves apart.
Which substances are used for making electromagnets?
Define the agonic line.
State briefly the molecular theory of magnetism.
A circular loop placed in a plane perpendicular to the plane of paper carries a current when the key is ON. The current as seen from points A and B (in the plane of paper and on the axis of the coil) is anti clockwise and clockwise respectively. The magnetic field lines point from B to A. The N-pole of the resultant magnet is on the face close to
Magnetic field lines determine ______.
A magnetic needle is kept in a non-uniform magnetic field. It experiences ______.
The direction of the magnetic lines around a current-carrying conductor can be easily understood using the ______ rule.
"Magnetic field is a physical quantity that has both direction and magnitude." How can this statement be proved with the help of magnetic field lines of a bar magnet?
