write the factors which current sensitivity of galvanometer depends ?

The current sensitivity depends on
1) Inversely to Torsion Constant that depends in the nature of substance used which is usually some phosphor bronze alloy ( k or alpha depending on the textbook you use)
2) Directly to the number of turns which is analogous to the proportional(N)
3) Directly to the area of the coil (A)
4) Directly to the magnetic field (B)

  • 11
current sensitivity is defined as the deflection per unit current. that is NAB / k so which tells that current sensitivty depends upon the Number of turns of the coil , area and also tha magnetic field of the coil.
  • 1
  • -3
What are you looking for?