Which instrument is used to measure the power of electric circuit ?
Correct answer: A. Wattmeter
- A. Wattmeter
- B. Viscometer
- C. Wavemeter
- D. None of these
Explanation
A wattmeter measures electrical power directly in watts by combining measurements of voltage and current. A wavemeter measures wavelength, while a viscometer measures fluid viscosity.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
About Physics in Daily Life
Everyday physics explains motion, force, work, power, pressure, heat, light, sound and electricity through familiar devices and natural events. Topics include simple machines, friction, expansion, reflection and refraction, lenses, household circuits, electrical safety and magnetism, with mass distinguished from weight and heat distinguished from temperature.
Practise Physics in Daily Life
343 free Physics in Daily Life MCQs from Everyday Science, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Everyday Science questions like this
Everyday Science is on 41 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Physics in Daily Life questions
When sound waves travel from air to water which of the following quantities remains unchanged?
Sound travels in air at an average speed of nearly________ ?
Eletromagneticism is the branch of___________?
Tyndall effect is related to the ______ of light?
______ is the "Work done in moving a unit charge between two points in an electric circuit"?
The most suitable unit for expressing nuclear radius is_______?