Question

Charge sensitivity of ballistic galvanometer formula

Answer 1

The charge sensitivity of a ballistic galvanometer may be defined as the (transient) charge needed to have a unit value for the first maxima of the deflection of its coil.

Answer 2

Charge sensitivity of a ballistic galvanometer formula is Qs = Q / θ = k.

1) Ballistic Galvanometer is a special type of galvanometer used to measure the quantity of charge which is passing through any cross-section of a circuit due to transient current or transient voltage.

2) Some momentum is imparted by the transient current to the coil.

3) This effect of momentum is measured in the form of deflection.

4) Charge sensitivity Qs = Q / θ = c t / (2 * pi * B * N * A) = k