Grade upto college level Magnetism
The magnetic induction at a point P which is at a distance of 4 cm from a long current carrying wire is 10-3 T. The field of induction at a distance 12 cm from the current will be
(a) 3.33 × 10-4 T
(b) 1.11 × 10-4 T
(c) 3 × 10-3 T
(d) 9 × 10-3 T
The magnetic induction at a point P which is at a distance of 4 cm from a long current carrying wire is 10-3 T. The field of induction at a distance 12 cm from the current will be
(a) 3.33 × 10-4 T
(b) 1.11 × 10-4 T
(c) 3 × 10-3 T
(d) 9 × 10-3 T
