AP EAMCET201824 Apr 2018Evening ShiftPhysicsElectromagnetic InductionActual
A thin wire of length ' L ' made of an insulating material is bent to form a circular loop and a positive charge ' q ' is given so that it is distributed uniformly around the circumference of the loop. The loop is then rotated with an angular speed ' ' about an axis passing through its centre. If a uniform magnetic field B directed parallel to the plane of the loop is applied then the magnitude of the magnetic torque
Options
- Aq L ^2 ~B 8 ^2
- Bq L ^2 ~B 4 ^2
- Cq L ^2 ~B 2 ^2
- Dq L ^2 ~B ^2
Correct answer
A. q L ^2 ~B 8 ^2
Step-by-step solution
No solution. Refer to answer key.