___ are used to detect spike voltages, or currents of short duration, or sudden drops in voltage, current, or power.

___ are used to detect spike voltages, or currents of short duration, or sudden drops in voltage, current, or power.

• A. Recording meters
• B. Analog meters
• C. Digital meters
• D. Voltmeters

Answer: (A)

Transients—spikes, short bursts, or sudden drops—need a tool that logs how a quantity changes over time. Recording meters are built to capture measurements over a period, so they can show spike voltages, short-duration currents, or quick dips in voltage, current, or power as they happen. This time-based record lets you see both how large the event is and how long it lasts, which a single instantaneous reading often misses. By comparison, analog and digital meters typically display one momentary value, and a voltmeter measures voltage specifically, not the broader changes in current or power over time. So recording meters are the best fit for detecting transient events.

Transients—spikes, short bursts, or sudden drops—need a tool that logs how a quantity changes over time. Recording meters are built to capture measurements over a period, so they can show spike voltages, short-duration currents, or quick dips in voltage, current, or power as they happen. This time-based record lets you see both how large the event is and how long it lasts, which a single instantaneous reading often misses. By comparison, analog and digital meters typically display one momentary value, and a voltmeter measures voltage specifically, not the broader changes in current or power over time. So recording meters are the best fit for detecting transient events.