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A Voltmeter is:

  • Used in a closed circuit
  • Used to measure voltage drop
  • Connected in parallel to a circuit according to polarity. Keeping the lead to the most positive side of the circuit.
  • The sum of voltage drop equals the voltage source

The diagram illustrates meter usage - click on the small ammeter and voltmeter to see an example of correct readings.

Volt Meter Volt Meter Volt Meter

Also see: Ammeter and Ohmmeter