As per given figure to complete the circular loop what should be the radius if initial height is 5 m

In the figure, the current l enters the circular loop of uniform wire of radius r at A and leaves it at B. The magnetic field of the centre of circular loop is

In the figure, the current l enters the circular loop of uniform wire of radius r at A and leaves it at B. The magnetic field of the centre of circular loop is

A long straight conductor carrying a current i is bent to form an almost complete circular loop of radius r on it. The magnetic field at the centre of the loop

Figure shows a an incline which ends into a circular track of radius R. What should be the minimum value of height (h), so that the small object shown after release, is able to complete the loop. Neglect friction.

The adjoining figure represent a semi-circular loop of charge Q and of radius R .The minimum velocity with which a point mass m of charge -q should be projected so that it becoems free from the influence of the loop is

A moter cyclist loops a vertical circular loop of diameter 18 m, without droping down , even at the highest point of the loop . What should be his minimum speed at the lowest point of the loop ?

A block is released from rest at the top of an inclined plane which later curves into a circular track of radius r as shown in figure. Find the minimum height h from where it should be released so that it is able to complete the circle.

A block is released from rest at the top of an inclined plane which later curves into a circular track of radius r as shown in figure. Find the minimum height h from where it should be released so that it is able to complete the circle.