Voltmeter and Ammeter
As we discussed that a voltmeter measures voltage (potential difference) and is connected in parallel to the circuit, whereas an ammeter measures current and is connected in series with the circuit. Both instruments help monitor electrical characteristics.
Difference between Voltmeter and Ammeter
The following table shows the difference between ammeter i.e., ampere meter and voltmeter:
|
Ammeter vs Voltmeter |
|
|---|---|
| Ammeter | Voltmeter |
| It can be used to detect currents. | It may be used to measure the voltage between two points. |
| The resistance is negligible. | The resistance is High . |
| It is also connected in series with the circuit but offers higher accuracy. | It is connected in series with the circuit and has low precision. |
| Range cannot be changed. | It is possible to change the range of possibilities. |
| The resistance of the perfect ammeter device should be zero. | An ideal voltmeter gear should be resistive approaching infinity. |
| It is symbolized by the letter A. | It is symbolized by V. |
Voltmeter
Voltmeter is a measuring instrument designed to detect the potential difference between two points in an electric or electronic circuit. A voltmeter is commonly used for AC or DC circuits. Specialist voltmeters may also measure Radio Frequency (RF) voltage.
A device’s voltage can be measured using a voltmeter that is connected in parallel to the said device. This arrangement is significant since parallel objects usually tend to have the same potential difference. It is wired in parallel with the circuit, primarily due to similar voltage losses across it. In this article, we will discuss all the topics related to Voltmeter including its diagram, parts, formula, various types, working principle, how to use, etc.
Table of Content
- What Is a Voltmeter?
- Voltmeter Diagram
- Voltmeter Working Principle
- Types of Voltmeter
- How to Use a Voltmeter?
- Uses of Voltmeter