What is principle of voltmeter?

Voltmeter works on the principle of Ohm’s law. It is used to measure the potential difference between two points of a circuit.

What is voltmeter and its function?

A voltmeter, also known as a voltage meter, is an instrument used for measuring the potential difference, or voltage, between two points in an electrical or electronic circuit. Some voltmeters are intended for use in direct current (DC) circuits; others are designed for alternating current (AC) circuits.

What are the various types of voltmeters?

Voltmeters are of five types based on construction – rectifier type voltmeter, MI voltmeter, electrodynamic voltmeter, PMMC, induction type voltmeter. Rectifier type voltmeter measures the voltage using a permanent magnet moving coil and rectifying elements.

What is the application of voltmeter?

A voltmeter is an instrument used for measuring electric potential difference between two points in an electric circuit. It is connected in parallel. It usually has a high resistance so that it takes negligible current from the circuit.

What is the SI unit of voltmeter?

The SI unit for electric potential is the volt.

What is the range of voltmeter?

The range of practical voltmeter ranges between 1000 to 3000 volts.

Who invented voltmeter?

The creation of voltmeters became possible when Hans Oersted invented the most simple voltmeter in 1819.

What is least count of voltmeter?

A voltmeter has a least count of 0.

What is the unit used for voltage?

Volt
Volt. The volt is the unit of electric potential difference—electric potential difference is also known as voltage. The size of 1 volt is officially defined as the potential difference between two points of a wire carrying a current of 1 ampere when the power dissipated in the wire is 1 watt.