Advertisements
Advertisements
प्रश्न
उत्तर
APPEARS IN
संबंधित प्रश्न
Draw a diagram to show the magnetic field lines around a bar magnet.
The magnetic field lines produced by a bar magnet:
(a) originate from the south pole and end at its north pole
(b) originate from the north pole and end at its east pole
(c) originate from the north pole and end at its south pole
(d) originate from the south pole and end at its west pole
What is an artificial magnet? State two reasons why do we need artificial magnets .
Explain what you understand by magnetic induction. What role does it play in attraction of a piece of iron by a magnet?
State four properties of magnetic field lines.
In a uniform magnetic field, the field lines are:
Select the correct option:
Nickel is a:
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
Assertion (A): Magnetic field lines never intersect each other.
Reason (R): If they intersect, then at the point of intersection, the compass needle would point towards two directions, which is not possible.
