Current sensitivity of moving coil galvanometer \(= \frac{\phi}{I} = \frac{NBA}{K}\)
Where
N: Number of turns in coil,
B: Magnetic field.
A: area of coil
K : torsional constant
Current sensitivity can be increased by
• increasing number of turn (N) of the coil
• increasing magnetic field (B)
• increasing area of coil (A).
