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

A semi circular arc of radius r and a straight wire along the diameter, both are carrying same current i. Find out magnetic force per unit length on the small element P, which is at the centre of curvature?
1631444_d558186da12843519cedd4d30b70c9e1.PNG

A
(μ0i24r)
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
(μ0i22r)
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
(μ0i2r)
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
(2μ0i2r)
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is C (μ0i24r)
Given that,

Radius = r

Current =i

We know that,

The magnetic force per unit length on the small element P,

F=Bil

Fl=Bi

Fl=μ0i24r

So, The magnetic force per unit length is μ0i24r

Hence, A is correct option.

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Integrating Solids into the Picture
PHYSICS
Watch in App
Join BYJU'S Learning Program
CrossIcon