Why is it that while using a moving coil galvanometer as a voltmeter, a high resistance in series is required whereas in an ammeter a shunt is used?

Answer the following: (a) With the help of a diagram , explain the principle and working of a moving coil galvanometer . (b) What is the importance of a radial magnetic field and how is it produced ? (c) Why is it while using a moving coil galvometer as a voltmeter a high resistance in series is required whereas in an ammeter a shunt is used ?

(a) With the help of a diagram , explain the principle and working of a moving coil galvanometer . (b) What is the importance of a radial magnetic field and how is it produced ? (c) Why is it while using a moving coil galvometer as a voltmeter a high resistance in series is required whereas in an ammeter a shunt is used ?

To send 10% of the main current through a moving coil galvanometer of resistance 99 ohm the shunt required is

To send 10% of the main current through a moving coil galvanometer of resistance 9 Omega , shunt S required is

Why an ammeter has low resistance while a voltmeter has high resistance?