A long solenoid is fabricated by closely winding a wire of radius 0.5 mm over a cylindrical nonmagnetic frame so that the successive turns nearly touch each other. What would be the magnetic field B at the centre of the solenoid if it carries a current of 5 A?

A long solenoid is fabricated by closely winding a wire of diameter 0.5 mm over a cylindrical nonmagnetic frames so that the successive turns nearly touch each other.What would be the magnetic field B at the centre of the solenoid if it carries a current of 2.5 A ?

A solenoid consists of 100 turns of wire and has a length of 10 cm. The magnetic field inside the solenoid when it carries a current of 0.5 A will be :

A solenoid consists of 100 turns of wire and has a length of 10 cm. The magnetic field inside the solenoid when it carries a current of 0.5 A will be :

A solenoid is 2 m long and 4 cm in diameter. It has 4 layers of windings of 1000 turns each and carries a current of 5 A. What is the magnetic field at the center of the solenoid?

A solenoid 50 cm long has 4 layers of windings of 350 turns each. If the current carried is 6 A, find the magnetic field at the centre of the solenoid.