Q2 of 39 Page 229

The magnetic field in a given region is uniform. Draw a diagram to represent it.

Magnetic field is said to be uniform if the magnetic induction has the same magnitude and the same direction at all the points in the region. It is represented by drawing parallel lines, as given below:

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3

Why don't two magnetic lines of force intersect with each other?

 1

Consider a circular loop of wire lying in the plane of the table. Let the current pass through the loop clockwise. Apply the right hand rule to find out the direction of the magnetic field inside and outside the loop.

 3

Choose the correct option:

The magnetic field inside a long, straight solenoid carrying current:


(a) is zero


(b) decreases as we move towards its end


(c) increases as we move towards its end


(d) is the same at all points

 1

Which of the following property/properties of a proton can change while it moves freely in a magnetic field? (There may be more than one correct answer):

(a) mass


(b) speed


(c) velocity


(d) momentum