wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

A circular coil of 25 turns and radius 12 cm is placed in a uniform magnetic field of 0.5 T normal to the plane of the coil. If the current in the coil is 6 A then total torque acting on the coil is

A
zero
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
3.4 N m
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
3.8 N m
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
4.4 N m
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is A zero
The torque acting on the coil τ=|¯m X ¯B | =mBsinΘ
Here the circular coil is placed normal to the direction of magnetic field then the angle between the. direction of magnetic moment (¯m) and magnetic field (¯B) is zero, then
τ = mBsinΘ = mBsin0 = 0 τ=0

flag
Suggest Corrections
thumbs-up
0
similar_icon
Similar questions
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Algebraic Identities
PHYSICS
Watch in App
Join BYJU'S Learning Program
CrossIcon