Definition: A meter used to measure the value of an unknown resistance is called an ohmmeter. The same meter movement that was used in the voltmeter and ammeter can be used for the ohmmeter. A voltage source and a variable resistor are added to the ohmmeter’s circuit. Series Type Ohmmeter …
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Definition: A voltmeter is a basic device used for the measurement of electric potential or voltage, in volts. Voltmeter Working The same basic meter movement that is used in an ammeter is also used to measure voltage. This is providing that the impressed voltage across the coil never exceeds 0.1 volt, …
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Definition: An ammeter measures electrical current in a circuit. An ammeter will usually measure in amperes, milliamperes, or microamperes, depending on the scale or design of the instrument. Ammeter Working The coil in the meter movement of an ammeter is wound with many turns of fine wire. If a large …
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