Sudarshan Asked a Question
April 10, 2020 2:14 pmpts 30 pts
The magnetic field at a point on the axis of an infinitely long solenoid consisting of n turns per unit length wrapped around a cylindrical tube of radius a and carrying current I is given by (A) 4,nl B) 4,nl/2 C) 4an (D) 4,1 2a)
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  • Abhishek singh thankyou
    You should directly remember this formula, this will help you saving time in exam. Best regards.
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  • Paltu Sen Best Answer
    ans: opt(a)
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