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

A closely wound solenoid of 2000 turns and area of cross-section 1.6 xx 10^-4 m^2 ,carrying a current of 4.0 A,is suspended through its centre allowing it to turn in a horizontal plane. What is the magnetic moment associated with the solenoid ?

A closely wound solenoid of 2000 turns and area of cross-section 1.5 xx 10^(-4) m^(2) carries a current of 2.0 A . It is suspended through its centre and perpendicular to its length, allowing it to turn in a horizontal plane in a uniform magnetic field 5 xx 10^(-2) tesla making an angle of 30^(@) with the axis of the solenoid. The torque on the solenoid with the

A closely wound solenoid of 800 turns and area of cross section 2.5 xx 10^-4 m^2 carries a current of 3.0 A. Explain the sense in which the solenoid acts like a bar magnet. What is its associated magnetic moment ?

A closely wound solenoid of 1000 turns and area of cross-section 2 xx 10^-4 m^2 carries a current of 1 A. It is placed in horizontal axis at 30^@ with the direction of uniform magnetic field of 0.16 T. Calculate magnetic moment of solenoid and torque experienced by the solenoid due to the field.

A 50 m long solenoid has 500 turns and produces a magnetic field of 2.5 xx 10^-4 T at its centre. Find the current in the solenoid.

A square coil of side 10 cm consists of 20 turns and carries a current of 12A. The coil is suspended vertically and the normal to the plane of the coil makes an angle of 30^@ with the direction of a uniform horizontal magnetic field 0.8 T. What is the magnitude of torque experienced by the coil?

A proton enters a magnetic field of flux density 2.0 weber/m^2 with a velocity of 2 xx 10^7ms^1 at an angle of 30^@ with the field,the force on the proton will be

If the solenoid in the previous question is free to turn about the vertical direction and a uniform horizontal magnetic field of 0.25 T is applied, what is the magnitude of torque on the solenoid when its axis makes an angle of 30^@ with the direction of applied field?

A 3 cm wire carrying a current of 10 A is placed inside be solenoid perpendicular to its axis. The magnetic field inside the solenoid is given to be 27 T. What is the magnetic force on the wire?

A metal wire of length 2.5 m and area of cross section 1.5 xx 10^-6 m^2 is stretched through 2 mm. Calculate the work done during stretching. (Y= 1.25xx 10^11 Nm^-2 ).