Define:Solenoid

What change do we observe in the Galvanometer when the current in the Solenoid coil is switched off?

Draw the magnetic force lines of a current carrying finite solenoid?

What change do we observe in the galvanometer if the current in the solenoid coil is increased?

Define leaf.

The magnetic field inside a solenoid is

Do you know solenoid? Can you compare the magnetic field due to a current carrying solenoid with that due to a bar magnet?

Consider a uniformly wound solenoid having N turns and length L. The core of the solenoid is air. Find the inductance of the solenoid of N = 200, L = 20 cm and cross-sectional area, A = 5 cm^2 . Calculate the induced emf e_L , if the current flowing through the solenoid decreases at a rate of 60 A//s .

A solenoid 60 cm long has two layers of 300 turns each.The radius of cross section of the solenoid is 1.5 cm. If the current flowing through the solenoid is 5A.Find the magnitude of magnetic induction inside the solenoid fair from the ends .

The number of small magnetic dipoles in a solenoid is proportional to