Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test Physics Moving Charges and Magnetism Magnetic Field
A copper wire of diameter 1.6 mm carries a current i. The maximum magnetic field due to this, wire is 5 × 10-3 T. The value of i is
1
40 A
2
5 A
3
20 A
4
More than one of the above
5
None of the above