Home
Class 12
PHYSICS
A coil ABD of N turns & radius R carries...

A coil `ABD` of `N` turns `&` radius `R` carries a current of `1 Amp` `&` is placed on a horizontal tabel.`K` is a very small horizontal conducting ring of radius `r` placed at a distance `Y_(0)` from the centre of the coil vertically above the coil `ACD`.Find an expression for the `EMF` established when the ring `K` is allowed to fall freely.Express the `EMF` in terms of instanteous speed `v &` height `Y`.

Text Solution

Verified by Experts

The correct Answer is:
`(3)/(2)(mu_(0)piR^(2)r^(2)Niyv)/((R^(2)+y^(2))^(5//2))`
Promotional Banner

Similar Questions

Explore conceptually related problems

A coil A of radius R and number of turns n carries a current i and it is placed in a horizontal plane. A small conducting ring P of radius r (r lt lt R) is placed at a height y_(0) above the centre of the coil A as shown in figure-5.38. Calculate the induced EMF in the ring when the ring in allowed to fall freely. Express the induced EMF as a function of instantaneous speed of the falling ring and its height above the center of the coil A.

A circular coil of n turns and radius r carries a current I. The magnetic field at the center is

A circular coil of 100 turns has a radius of 10 cm and carries a current of 5A. Calculate the magnetic field (a) at the centre of the coil (b) at a point on the axis of the coil at a distanceof 5cm from the centre of the coil.

The ratio of the magnetic field at the centre of a current carrying coil of the radius a and at distance 'a' from centre of the coil and perpendicular to the axis of coil is

A circular coil of radius R carries an electric current. The magnetic field due to the coil at a point on the axis of the coil located at a distance r from the centre of the coil, such that r gtgt R , varies as

A circular coil of radius R carriers an electric current. The magnetic field due to the coil at a point on the axis of the coil located at a distance r from the centre of the coil, such that rgt gtR , varries as

A circular coil of 120 turns has a radius of 18cm and carries a current of 3*0A . What is the magnitude of the magnetic field (i) at the centre of the coil (ii) at a point on the axis of the coil at a distance from the centre equal to the radius of the coil?

Show that the magnetic field along the axis of a current carrying coil of radius r at a distance x from the centre of the coil is smaller by the fraction 3x^2//2r^2 than the field at the centre of the coil carrying current.