The resistance of an ideal voltmeter is:

A voltmeter is a tool used to gauge the difference in potential between two points in a circuit. An perfect voltmeter has an infinite resistance.
Electric current is the flow of positive charge since it is defined as the rate of flow of charge or electron.
The scalar quantity known as the ampere (A) is the SI unit of electricity.
The conductor's opposition to the flow of current through it is referred to as resistance.

An ammeter is a tool used to gauge the electric current flowing through a circuit. An ideal ammeter has zero resistance and is constantly linked in series with the circuit.
A galvanometer is a tool that may be used in any circuit to find and quantify tiny electric currents. It is capable of measuring current up to $10-6 mathematical amperes. Now here's the intriguing fact:

By attaching a shunt parallel to a galvanometer, we may turn it into an ammeter.
Shunts are tiny wires with extremely low resistance. By adding a very large resistance in series with a galvanometer, we may also transform it into a voltmeter.

Voltmeters are always used in parallel in the circuit to get accurate voltage readings for the entire element. The resistance of the voltmeter is kept so high that it can draw a minimum amount of current from the circuit, allowing accurate voltage measurement.