Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test General Science Physics Magnetism
There is a circular coil having n turns. The field produced at the center is how many times larger than produced by a coil of single turn?
1
n
2
n2
3
n/2
4
More than one of the above
5
None of the above