The earth's magnetic field at a certain point is 7Ã10^-5 wb/m^2 .This is to be annuled by the magnetic induction at the centre of a circular conducting loop of radius 5 cm. The required current in the loop is?
Answers
Answered by
0
The magnetic induction B at a distance 'r' from a straight wire carrying 'I' amperes of current is (mu) I/(2(pi)r weber
Similar questions