A charged particle is moving in a circle at right angles to

A charged particle is moving in a circle at right angles to a magnetic field. If the velocity of the charges particle is increased but the direction of its motion stays the same, the circle will become larger in radius smaller in radius a spiral a helix The magnetic flux through a loop is defined as The field strength x the area x the sine of the angle that the normal to the loop makes with the plane of the loop. The field strength times the perpendicular velocity of the loop.

Solution

7.Answer is (b)--Smaller in radius.

The velocity of the charge particle is increased but the direction of its motion stays the same.then the radius of the circle decreases.

8.Here the answer is (b)

The field strngth(B) times perpendicular velocity of the loop.