STANDARDPhysics-Electromagnetism
STANDARD Physics Galvanometer MCQ Question
Type: MCQ-conceptual-Medium-Class 12
In a moving coil galvanometer the deflection (ϕ) on the scale by a pointer attached to the spring is
A
(NA/kB)I
B
(N/kAB)I
C
(NAB/k)I
D
(NAB/kI)
Correct Answer
Option C
Detailed Explanation
The deflection in a moving coil galvanometer is given by ϕ = (NAB/k)I, where N is the number of turns, A is the area, B is the magnetic field, k is the torsional constant, and I is the current.
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