The strength of magnetic field inside a long current carrying str

The strength of magnetic field inside a long current carrying str
| The strength of magnetic field inside a long current carrying straight solenoid is

A. More at the ends than at the centre

B. Minimum in the middle

C. Same at all points

D. Found to increase from one end to the other

Please scroll down to see the correct answer and solution guide.

Right Answer is: C

SOLUTION

CONCEPT:

  • Inside a long current carrying straight solenoid, magnetic field lines are straight and parallel.

The strength of parallel magnetic field lines indicate that the magnetic field is uniform everywhere.

EXPLANATION:

  • The strength of the magnetic field inside a long current-carrying solenoid is uniform everywhere. So option 3 follows.

So option 3 is correct.

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