FrictionHard
Question
A bar magnet of length ′l′ and magnetic dipole moment ′M′ is bent in the form of an arc as shown in figure. The new magnetic dipole moment will be


Options
A.

B.M
C.

D.

Solution
Let magnetic pole strength be m then

In new situation


In new situation

Create a free account to view solution
View Solution FreeMore Friction Questions
The upper portion of an inclined plane of inclination a is smooth and the lower portion is rough. A particle slides down...A plank of mass m1 = 8 kg with a bar of mass m2 = 2 kg placed on its rough surface, lie on a smooth floor of elevator as...Car is accelerating with acceleration = 20 m/s2. A box of mass m = 10 kg that is placed inside the car, it is put in con...A block of mass m = 10 kg rests on a horizontal table. The coefficient of friction between the block and thetable is 0.0...A marble block of mass 2 kg lying on ice when given a velocity of 6 m/s is stopped by friction in 10 s. then the coeffic...