Question
Which of the following displays an electrical quantity as a numeric value?
Answer Options
- A) Potentiometer
- B) Transistor
- C) Meter
- D) Relay
Correct Answer: C
Explanation
A meter (such as a voltmeter, ammeter, or ohmmeter) is any instrument designed to measure and display a physical or electrical quantity. A digital meter displays this measurement, such as voltage or resistance, as a numeric value on a screen, allowing for precise readings (T7D01).
Potentiometers are variable resistors, relays are switches, and a transistor is an amplifying device. Only the meter is designed primarily for measurement and display.
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