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 assosciated magnetic moment?

A closely wound solenoid of 2000 turns and area of cross-section 1.6 xx 10^1 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 800 turns and area of cross section 2.5×10^-4 m^2 carries a current of 3.0 A. If the solenoid 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 closely wound solenoid of 2000 turns and area of cross-section 1.6 xx 10^1 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 force and torque on the solenoid if a uniform horizontal magnetic field of 7.5 x 10^2 T is set up at an angle of 30^@ with the axis of the solenoid?

A closely wound solenoid of 1000 turns and area of cross section 1.4xx10^(-4)m^(2) carrying a current of 3 A is suspended through its centre allowing it to turn in a horizontal plane. The magnetic moment associated with this solenoid

A closely wound solenoid of 2000 turns and area of cross-section 1.5xx10^(-4)m^(2) carries a current of 2.0 A. it suspended through its center and perpendicular to its length, allowing it to turn in a horizontal plane in a uniform magnetic field 5xx10^(-2) tesla making an angle of 30^(@) with the axis of the solenoid. The torque on the solenoid will be:

A solenoid of length 50cm, having 100 turns carries a current of 2.5A. Find the magnetic field at one end of the solenoid.

A closely wound coil of 100 turns and area of cross-section 1cm^(3) has a coefficient of self-induction 1 mH. The magnetic induction in the centre of the core of the coil when a current of 2A flows in it, will be

A solenoid of length 50cm, having 100 turns carries a current of 2.5A. Find the magnetic field in the interior of the solenoid.