After the flow of current through the coil, it shows deflection. The rotation of coil and current passing through the coil is in direct relation to each other. A galvanometer can be used as ammeter if the resistance is attached in parallel combination with the galvanometer circuit and if resistance is attached in series combination it will operate like a voltmeter.
There is another name of ammeter that is ampere meter. To measure the value of current ammeter is connected in series combination. We have seen probably that the largest use of galvanometers was of the D'Arsonval that is the Weston type which is used in analog meters in electronic equipment. In Since galvanometer-type analog meter movements were displaced by analog-to-digital converters which are also known as ADCs for many uses.
The advantages of a digital instrument are precision that is higher and accuracy. The other differences which were between the ammeter and galvanometer are shown below in the chart of comparison.
The galvanometer which uses a coil moving free to rotate between the magnet permanent. When the flow of current through the coil it becomes really deflected. And the deflection of the coil is directly proportional to the flow of current through it. The galvanometer is said to be converted into the ammeter by connecting the resistance which is in parallel with the circuit.
And if the resistance is connected in series with a galvanometer that then it is used as a voltmeter. The ammeter is also called the meter of ampere. Ammeters work to measure electrical current by measuring the current through a set of coils with a very low resistance and inductive reactance. This allows for a very low impedance, the force that opposes electric current, that lets the ammeter accurately measure the current in a circuit without interference or change due to the ammeter itself.
Viva Differences. Galvanometer Galvanometer is an electromechanical device used for detecting the presence of small current and voltage. It works due to the presence of the magnetic field.
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