1 Answer
A **voltmeter** is an electrical instrument used to measure the **voltage** (or electrical potential difference) between two points in a circuit. Voltage is the force that pushes electric charge through a conductor, and it’s measured in **volts (V)**.
In simple terms, a voltmeter tells you how much energy per unit charge is available at a specific point in a circuit. It is connected in **parallel** to the component or part of the circuit where the voltage needs to be measured.
For example, if you want to measure the voltage across a light bulb in a circuit, you would connect the voltmeter across the bulb (one lead on each terminal of the bulb).
Key points:
- A voltmeter is designed to have **very high resistance** so that it doesn’t draw too much current from the circuit while measuring the voltage.
- The display of the voltmeter shows the potential difference in volts.
Would you like to know more about how to use a voltmeter or how it's constructed?
In simple terms, a voltmeter tells you how much energy per unit charge is available at a specific point in a circuit. It is connected in **parallel** to the component or part of the circuit where the voltage needs to be measured.
For example, if you want to measure the voltage across a light bulb in a circuit, you would connect the voltmeter across the bulb (one lead on each terminal of the bulb).
Key points:
- A voltmeter is designed to have **very high resistance** so that it doesn’t draw too much current from the circuit while measuring the voltage.
- The display of the voltmeter shows the potential difference in volts.
Would you like to know more about how to use a voltmeter or how it's constructed?