A closely wound solenoidof 2000 turns and area of cross- section 1.6 xx 10^(-4) m^2, carrrying a current 4.0 A, is suspended through its centre allowing it to turn in a horizontal plane. (a) What is the magnetic moment associated with the solenoid ? (b) What is the force and torque on teh solenoid if a uniform horizontal magnetic field . 7.5 xx 10^(-2) T is set up at an angle of 30^@ with the axis of solenoid ?

A closely wound solenoidof 2000 turns and area of cross- section 1.6 x

1.	A closely wound solenoidof 2000 turns and area of cross- section 1.6 xx 10^(-4) m^2, carrrying a current 4.0 A, is suspended through its centre allowing it to turn in a horizontal plane. (a) What is the magnetic moment associated with the solenoid ? (b) What is the force and torque on teh solenoid if a uniform horizontal magnetic field . 7.5 xx 10^(-2) T is set up at an angle of 30^@ with the axis of solenoid ?
Answer» Solution :(a) 1.28 A `m^2 , `(b) ZERO, `4.8 xx 10^(-2) NM`

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