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Magnetic Effect of Current : Complete Set of Questions


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This set of questions contains all the possible concepts
which could be asked in the examination

MAGNET 

Q.1  How two magnets apply force on each other?  (2 Marks)

Like poles of a magnet repel each other and unlike poles attract each other


Q.2  Name the two poles of a magnet? (2 Marks)

North Pole and south pole.


Q.3  What is meant by the term ‘magnetic field’? (2 Marks)

The space surrounding a magnet in which magnetic force can be experienced is called magnetic field. It has both magnitude as well as direction.


Q.4  Define magnetic field lines? (2 Marks)

To describe magnetic field, we draw magnetic field lines. Magnetic field lines are the lines drawn in a magnetic field region along which the north pole of a magnet points.


Q.5  Give three properties of the magnetic field lines? (3 Marks)

Properties of Magnetic Field Lines

1. Magnetic field lines originate from North Pole and end at South Pole.

2. Magnetic field lines come closer to one another near the poles of magnet but widely separated at other places.

3. Magnetic field lines do not intersect each other.


Q.6 Explain why, two magnetic field lines do not interest each other? (2 Marks)

Magnetic field lines never intersect each other because resultant force on North Pole can only be in one direction. Had the lines intersected, it would be in two directions which is not possible.


Q.7 State the direction of the magnetic field inside the bar magnet? (1 Mark)

The direction of magnetic field inside the bar magnet is from south to north.


Q.8 In a pattern of magnetic field lines due to a bar magnet, how can the regions of relative strength be identified? (2 Marks)

The region having high density of field lines has high density of magnetic field. But the regions where magnetic field lines have low density have lower value of magnetic field.


Q.9 You are given the magnetic field pattern of a magnet. How will you find out from it where the magnetic field is strongest? (2 Marks)

The region having high density of field lines has high density of magnetic field. But the regions where magnetic field lines have low density have lower value of magnetic field.


Q.10 Name an instrument in which the directive property of a magnet is used?(1 Mark)

Magnetic compass



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