Technical Standards and Safety Authority (TSSA) G3 Practice Exam

Disable ads (and more) with a membership for a one time $2.99 payment

Prepare for the TSSA G3 Exam. Study with quizzes, flashcards, and multiple-choice questions. Each provides valuable hints and detailed explanations to ensure readiness for your exam!

Start Multiple Choice Practice Test
Start Flash Cards

Practice this question and more.

When measuring voltage, which instrument is typically used?

  1. Ammeter

  2. Voltmeter

  3. Oscilloscope

  4. Wattmeter

The correct answer is: Voltmeter

A voltmeter is specifically designed to measure the voltage across two points in an electrical circuit. It is connected in parallel with the component across which the voltage is to be measured. The voltmeter will display the potential difference, or voltage, that exists without altering the circuit’s operation. In contrast, an ammeter is used to measure current and is connected in series with the circuit. An oscilloscope is utilized for observing the waveform of electrical signals, enabling analysis of voltage changes over time, but it serves a different purpose than simply measuring voltage directly. A wattmeter measures the power in a circuit and combines voltage and current measurements to provide that information. Thus, among the options provided, a voltmeter is the instrument specifically suited for measuring voltage.

More Questions Like This