Question

Resistance of coil in tangent galvanometer and moving coil galvanometer

Answer 1

Moving coil galvanometer has two types first is suspended ... a very high resistance in series with the galvanometer...

Answer 2

60°

Let the potential across the galvanometer be V volts.

Initially current flowing be i

i = 60V

Now after the shunt is connected, R

eff

= 30+60

30×60 =20Ω

So, i= 20V

Also from 60i g

=30(i−i g )⟹i g

=

3i

= 3( 20V )

Thus, i g

= 60V

i-e, current flowing through the galvanometer remains same although after the shunt is connected.

Now θ=

k

nAB

I

i.e., θ∝I

Hence deflection(θ) will same as I is same.