Question

Which factor will not affect the strength of a solenoid?1) number of wraps2) strength of current3) radius of the wraps4) core type

Answer 1

The main factors affecting the strength of a solenoid are the current passing through the loop, the loop count, i.e., the number of wraps, the wire size and the core type.

Thus among the given option, the radius of the wraps will not affect the strength of the solenoid. Any change in the radius of wraps results in the corresponding change in the number of the wraps, i.e., if the radius decreases, the number of wraps increases. Or if the radius increases, then the number of the wraps decreases.

Thus the correct answer is option 3, the radius of the wraps.