CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

A thin straight conductor lies along the axis of a hollow conductor of radius R=0.2 m, both of them carries 2 A current in the same direction. Find magnetic induction at a distance R from the axis of the hollow cylinder.

A
20×107 T
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
10×107 T
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
30×107 T
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
40×107 T
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
Open in App
Solution

The correct option is D 40×107 T

Given:
R=0.2 m; i=2 A

Using Ampere's law for magnetic induction at point P is,

Bdl=μ0inet

Here, inet=4 A and dl=2πR

B(2πR)=μ0(2i)

B=4π×107×2(2)2π×(0.2)

B=40×107 T

Hence, option (d) is the right choice.

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
Join BYJU'S Learning Program
CrossIcon