What is long solenoid ?

What is a solenoid ? Discuss the magnetic field due to a current - carrying solenoid .

What is solenoid ? Give information of magnetic field by qualitative discussion.

An electron is projected with uniform velocity along the axis of a current carrying long solenoid. Which of the following is true ?

There are 50 turns per cm length in a very long solenoid. It carries a current of 2.5A. The magnetic field at its centre on the axis is ______ T.

Consider the two idealized systems : (i) a parallel plate capacitor with large plates and small separation and (ii) a long solenoid of length L lt lt R , radius of cross-section. In (i) overset(to) is ideally treated as a constant between plates and zero outside. In (ii) magnetic field is constant inside the solenoid and zero outside. These idealised assumptions, however, contradict fundamental laws as below :

What is solenoid ?

Series combination of 10 Omega resistance and 5 cm long solenoid having 5 mH self inductance are connected to 10 V battery. Current passing through solenoid in steady state is ___

Out of the following , which statement is wrong for a current - carrying solenoid ?