The current is reversed in a galvanometer
Its a point on the galvanometer where the galvanometer shows no deflection as no current passes through it.
i think this is galvanometer so galvanometer is a device which detect the current as well as it measure small amount of current
A galvanometer is used to test an electrical current. A galvanometer can be made using a compass and a thin gauge of wire.
The galvanometer is very sensitive.
Ohms are the unit of measurement for resistance, so an ohmmeter is a device that measures electrical resistance. A galvanometer measures the current flowing through the resistance, so the two are related. To convert a galvanometer into an ohmmeter, one needs an external battery.
Small amounts of current
It measures current.
There is no current flow through the galvanometer in a balanced Wheatstone bridge because, in the balanced state, the voltage on both terminals of the galvanometer is the same. Since the voltage differential in zero, there can be no current.
To measure electric current intensity.
A magnetic compass can detect current, butyou'll need an Ammeter to measure it.A galvanometer can detect current ~ butyou'll need an Ammeter to measure it.
A shunt resistance is a low resistance connected parallel to the galvanometer so that a large portion of current passes through the low resistance and a small fraction of current passes through the galvanometer this saves the galvanometer from damage