In a properly adjusted tangent galvanometer, the deflection for 1A current is found to be 30o. Now the coil is turned through 90o about the vertical axis, the deflection for the same current will be
A
60o
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
30o
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
90o
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
0o
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
Open in App
Solution
The correct option is D0o
The basic concept used here is that force in the coil increases as its angle of twist increases as F∝θ. Now this force in the spring will be balanced by the force due to magnetic field.
Here the correct answer will be 00 because in case of 900 deflection when the current is passed there will be no more deflection since it is already been more that 300.