Question

In a current carrying long solenoid, the field produced does not depend upon

• A. Number of turns per unit length
• B. Current flowing
• C. Radius of the solenoid
• D. All of the above three

Answer 1

Answer: (C)

Radius of the solenoid

Answer 2

Here $B = \mu _ { 0 } n i$

Where n is number of turns per unit length

$= \frac { N } { l }$