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

A wire loop enclosing a semicircle of radius R is located on the boundary of uniform magnetic field B. At time t=0, the loop is set into motion with constant angular accleration α about an axis passing through O and is perpendicular to semicircle. The clockwise emf direction is taken to be positive. The modulus of variation of emf as a function of time is (0<θ<π),
then the variation of emf as a function of time is given by the graph

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
For (0<π), ϵ=BR2αt2
For (0<2π),
ϕ=B(2πθ)R22
ϵ=dϕdt=BR2αt2


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