In a moving coil galvanometer, the deflection of the coil q is related to the electrical current i by the relation
A
`I^3`
B
`I^2`
C
`I`
D
`I^-1`
Text Solution
Verified by Experts
The correct Answer is:
C
Topper's Solved these Questions
MAGNETIC EFFECT OF ELECTRIC CURRENT
NIKITA PUBLICATION|Exercise MCQs (Sensitivity and accuracy of M.C.G.)|1 Videos
KINETIC THEORY OF GASES & RADIATION
NIKITA PUBLICATION|Exercise MCQs (Question Given in MHT-CET)|79 Videos
MAGNETISM
NIKITA PUBLICATION|Exercise MCQs|249 Videos
Similar Questions
Explore conceptually related problems
In a moving coil galvanometer, the deflection of the coil theta is related to the electric current i by the relation
In a moving coil galvanometer is based on the
In a moving coil galvanometer the deflection (phi) on the scale by a pointer attached to the spring is
If in a moving coil galvanometer, a current I produces a deflection theta , then
In a moving coil galvanometer, torque on the coil can be experessed as tau = ki , where i is current through the wire and k is constant . The rectangular coil of the galvanometer having number of turns N , area A and moment of interia I is placed in magnetic field B . Find (a) k in terms of given parameters N,I,A andB (b) the torsion constant of the spring , if a current i_(0) produces a deflection of (pi)//(2) in the coil . (c) the maximum angle through which the coil is deflected, if charge Q is passed through the coil almost instaneously. ( ignore the daming in mechinal oscillations).
If number of turns in moving coil galvanometer becomes half , then the deflection for the same current will become
The sensitivity of a moving coil galvanometer depends on
NIKITA PUBLICATION-MAGNETIC EFFECT OF ELECTRIC CURRENT-MCQs (Sensitivity and accuracy of M.C.G.)