An air core solenoid of 80 cm length has 500 turns and its circular cross-section has a diameter of 2 cm, calculate
the self inductance of the solenoid?

A conducting wire of 100 turns is wound over 1 cm near the centre of a solenoid of 100 cm length and 2 cm radius having 1,00 turns. Calculate coefficient of mutual inductance of the two solenoids.

A solenoid of length 30 cm, having 150 turns carries of 2.1 A. calculate the magnitude of magnetic field in the interior of the solenoid.

A solenoidal coil has 50 turns er cm along its length and a cross-sectional area of 4 cm^2 . 200 truns of another wire is wound round the first solenoid coaxially. The two coils are electrically insulated from each other. Calculate the mutual inductance between the two coils. given that mu_0 = 4 pi xx 10^-7 N A^-2

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 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 toroidal solenoid with an air core has an average radius of 15 cm , area of cross-section 12 cm^(2) and 1200 turns . Ignoring the field variation across the cross-section of the toroid the self-inductance of the toroid .

A long solenoid of length 1 m, cross sectional area 10 cm^2 , having 1000 turns has wound about its centre a small coil of 20 turns. Compute the mutual inductance of the two circuits. What is e.m.f. in the coil when the current in the solenoid chanages at the rate of 10 As^-1 ?