Definition

A device used to measure the amount of electrical power in watts that is being used in a circuit.

Example

The technician used a wattmeter to check the power consumption of the new appliance.

Conversation

Have you ever used a wattmeter before?

No, I haven’t. What does it do?

It measures the power in watts that flows through a circuit.

That sounds really useful, especially for electrical projects!

Synonyms & Antonyms

Root Explanation

Wattmeter → It is formed from "watt" (named after James Watt, a Scottish inventor and mechanical engineer known for his work on the steam engine) and "meter" (from Greek "metron", meaning measure). A wattmeter is an instrument that measures electrical power in watts.

Memory Tip

Think of measuring power in watts, named after the inventor James Watt, and remember that a wattmeter is a device that measures this power.

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