The magnetic induction at a point P which is distant 4 cm from a long current carrying wire is 10−3 Telsa.The field of induction at a distance 12 cm from the same current would be
A
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution
The correct option is A
B=μ04π.2ir⇒B1B2=r2r1⇒10−3B2=124⇒B2=3.33×10−9 Tesla