Which instrument measures voltage in a circuit?

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Prepare for the ASVAB Electronics section with multiple-choice questions and detailed explanations. Boost your confidence and ace the exam with comprehensive study tools!

Multiple Choice

Which instrument measures voltage in a circuit?

Explanation:
Voltage is the potential difference between two points in a circuit. To measure this, you use a voltmeter, an instrument designed to sense that potential difference. It’s connected in parallel across the component or portion of the circuit you want to know the voltage across, so it reads the same potential difference without drawing significant current from the circuit. The voltmeter has high internal resistance to minimize its impact on the circuit, and its reading is given in volts.

Voltage is the potential difference between two points in a circuit. To measure this, you use a voltmeter, an instrument designed to sense that potential difference. It’s connected in parallel across the component or portion of the circuit you want to know the voltage across, so it reads the same potential difference without drawing significant current from the circuit. The voltmeter has high internal resistance to minimize its impact on the circuit, and its reading is given in volts.

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