Attributes Defining The Voltmeter
The following are the Attributes of an ideal voltmeter:
- It has unlimited resistance.
- It has extreme sensitivity.
- It has high precision.
- There is no zero error.
- There is no temperature dependence.
- Speedy response.
- It has good resolution.
Why is a Voltmeter Connected in Parallel?
A voltmeter has a function to measure the voltage in an electrical circuit by measuring out potential difference between two points. In the case of an AC circuit, it measures root mean square values at various points in time intervals.
The Voltmeter or the voltage metre is connected in parallel to show that the current which it demonstrates is fed back as a potential difference. This is the common way of connecting parallel circuits whereby it’s arranged so that together with a battery, bulb and voltmeter form one circuit while all other parts are connected in series.
Voltmeter is connected in parallel to prevent it from drawing any current. So that it does not affect the impedance of the circuit and can be fully powered up with full voltage but very high resistance.
In case we use a voltmeter in series as opposed to parallel, it will lead to the reduction of electric current passing through the circuit.
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