Question

Which has more resistance – a galvanometer or a milliammeter?

Answer 1

The two answers -

Milliammeter has lower resistance. Consider a wire carrying 10mA , if we attach an ammeter or a milliammeter to it, the deflection of the ammeter will be much lower than the deflection of milliammeter.

ϕ=(NABk)VRϕ=(NABk)VR

Since, milliammeter is more sensitive, the resistance is lower in milliammeter.

For a constant voltage , the current through a milliammeter must be lower (in the order of milliamperes) but the current through a ammeter would be higher (in the order of amperes) thus the resistance in milliammeter will be higher.