VOLTMETERS

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A voltmeter is an essential tool in electrical and electronic circuits. Let’s explore its functions:

Voltage Measurement: The primary purpose of a voltmeter is to measure the voltage (or potential difference) between two points in a circuit. It provides information about the electrical potential at a specific location.
Parallel Connection: A voltmeter is connected in parallel with the circuit under test. This means it shares the same two points as the component or load being measured. By connecting in parallel, it ensures minimal disturbance to the circuit.
High Resistance: Voltmeters typically have a high internal resistance. This prevents significant current flow through the voltmeter itself. High resistance ensures that the voltmeter draws only a negligible amount of current from the circuit.
AC and DC Measurement: Voltmeters can measure both alternating current (AC) and direct current (DC) voltages. Some specialized voltmeters can even handle radio frequency (RF) voltage measurements.