Consider the following statements about a solenoid 1 The magnetic field strength in a solenoid depen...........

General Science (NDA) Physics

Download Solution PDF

Consider the following statements about a solenoid :

1. The magnetic field strength in a solenoid depends upon the number of turns per unit length in the solenoid

2. The magnetic field strength in a solenoid depends upon the current flowing in the wire of the solenoid

3. The magnetic field strength in a solenoid upon the diameter of the solenoid

Which of the statements given above are correct?

1, 2 and 3

1 and 3 only

2 and 3 only

1 and 2 only

Explanation:

The magnetic field inside a solenoid is proportional to both the applied current and the number of turns per unit length. There is no dependence on the diameter of the solenoid, and the field strength doesn't depend on the position inside the solenoid, i.e., the field inside is constant.