Teaching UP PGT Mock Test Series 2024 Physics Moving Charges and Magnetism Magnetic Force on a Current-Carrying Wire
The magnetic induction at a point P which is at a distance 4 cm from a long current carrying wire is 10-8 tesla. The field of induction at a distance 12 cm from the same current would be
1
3.33 × 10-9 tesla
2
1.11 × 10-4 tesla
3
3 × 10-3 tesla
4
9 × 10-2 tesla