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


A square metal wire loop of side 10 cm and resistance 1Ω is moved with a constant velocity v0 in a uniform magnetic field of induction B = 2 weber/m2 as shown in the figure. The magnetic field lines are perpendicular to the plane of the loop (directed into the paper). The loop in connected to a network of resistors each of value 3Ω. The resistances of the lead wires OS and PQ are negligible. What should be the speed of the loop so as to have a steady current of 1 mA in the loop?

A
0.02m/s
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
2 m/s
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
20 m/s
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
200 m/s
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is A 0.02m/s
Total resistance R=1+62=4R
E=RI
=4×1×103V
=4mV
E=B l V0
4×103=2×10×102V0
V0=2×102=0.02ms1

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