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

A copper rod 10cm long rotates 1800 times per minute about an axis passing through one end at a right angle to the rod. A uniform magnetic field of 1 tesla is applied perpendicular to the plane of rotation. The voltage induced between the ends of the rod is

A
0.235V
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
0.942V
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
C
2.35V
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
zero
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is C 0.942V
Velocity induced =Bωl22
L= length of rod=10 cm=0.1 m

ω=1800 rpm=1800×2π60 s1

EMFinduced=1×1800×2π×0.1×0.0.12×60×100=0.942 V

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