A charge Q is spread uniformly over an insulated ring of radius R. What is the magnetic moment of the ring if it is rotated with and angular velocity w with respect to the normal axis ?
A
`(4)/(3)" q"omegar^(2)`
B
`(3)/(2)" q"omegar^(2)`
C
`"q"omegar^(2)`
D
`(1)/(2)" q"omegar^(2)`
Text Solution
Verified by Experts
The correct Answer is:
D
Topper's Solved these Questions
JEE MAINS
JEE MAINS PREVIOUS YEAR ENGLISH|Exercise Chemistry|1 Videos
JEE MAIN
JEE MAINS PREVIOUS YEAR ENGLISH|Exercise All Questions|452 Videos
JEE MAINS 2020
JEE MAINS PREVIOUS YEAR ENGLISH|Exercise PHYSICS|250 Videos
Similar Questions
Explore conceptually related problems
A charge q is spread uniformly over an insulated loop of radius r. If it is rotated with an angular velocity omega with respect to normal axis then the magnetic moment of the loop is :
Charge q is uniformly distributed over a thin half ring of radius R . The electric field at the centre of the ring is
A ring of radius 'r' and mass per unit length 'm' rotates with an angular velocity 'omega' in free space then tension will be :
A non-conducting ring of radius R has charge Q distributed unevenly over it. If it rotates with an angular velocity omega the equivalent current will be:
As shown in figure there is a ring having radius R and charge q distributed uniformly over it. If ring is rotated with a constant angular velocity @, then torque acting on the ring due to magnetic force is (Assume that magnetic field B is parallel to plane of ring)
A charge q is uniformly distributed over a quarter circular ring of radius r . The magnitude of electric field strength at the centre of the ring will be
Electric charge Q is uniformly distributed around a thin ring of radius a. find the potential a point P on the axis of the ring at a distance x from the centre of the ring .
A positive charge Q is uniformly distributed along a circular ring of radius R .a small test charge q is placed at the centre of the ring.
Consider a uniformly charged ring of radius R. Find the point on the axis where the electric field is maximum.
A charge +Q is uniformly distributed over a thin ring of the radius R. The velocity of an electron at the moment when it passes through the centre O of the ring, if the electron was initially at far away on the axis of the ring is (m=mass of electron, K=1/(4pi epsi_(0)) )
JEE MAINS PREVIOUS YEAR ENGLISH-JEE MAINS-Chemistry