What is a wattmeter used to measure and...

What is a wattmeter used to measure and...

Question 1 of 270705eccefa3bacbc34ba4d47f9c

What is a wattmeter used to measure and indicate?

Question 1 of 27070

Study area:

Study area:

Q

What is a wattmeter used to measure and indicate?

No Illustration

This question does not have an illustration

🔍 Key Concepts

• Watt as a unit in electrical systems • Relationship between voltage, current, and power (P = V × I) • Differences between instruments: ammeter, voltmeter, ohmmeter, wattmeter

💭 Think About

• Which quantity uses the unit ‘watt’—is it voltage, current, resistance, or power? • Look at each choice and match it to the most common instrument: which one does an ammeter measure, which one does a voltmeter measure, which one does an ohmmeter measure? • Once you match those three, what is left that a wattmeter would logically be used for?

✅ Before You Answer

• Know that ammeters are for current in amperes • Know that voltmeters are for voltage in volts • Know that ohmmeters (or ohmmeter function on a multimeter) are for resistance in ohms; eliminate the options that belong to these tools first