Units of Measure

Electricity and Magnetism

575859

Top Answer

The watt is a unit of power. It is a Newton meter per second, or can be given as a joule per second. We often encounter it in electrical calculations, and it is the unit of power for applications there. The formula for power is given here:

P = I x E

In this expression, the power (P) in watts is equal to the current (I) in amps (or amperes, if you prefer) times the voltage (E) in volts.

The simplest example of a watt would be the amount of power that you would have if you had one volt at one amp of current. Or, to put it another way, 1 volt X 1 Amp=1 Watt. To go further, 12 volts at 1 amp equals 12 watts. This is for direct current measurement.

For AC voltage, it varies in that you would multiply the volts by .707 (AC RMS voltage), then multiply by the amps to get your watts total.

Trending Questions

How many 3s in 313433535333?

Who would you swap lives with for a day?

Is it true that one human year is equal to seven dog years?

What is the name of the movie filmed in weslaco Texas where cornelio reyna sang?

What is the answer to this India foxtrot Yankee Oscar uniform charlie alpha November uniform November delta echo romeo sierra tango alpha November delta tango hotel India sierra charlie Oscar papa yan?

Din se roshan hai raat se andhari hai khao to haram hai peo to halal hai aurat sari zindgi you use 1 bar use karti hai aur mard din you 3 bar use karta hai quran you uska 5 dafa zikar hai?

A farmer has 19 sheep All but 7 die How many are left?

What is the net worth of the Collingsworth Family gospel singers?

Hottest Questions

Can eggs break inside a chicken?

Why do books come out in hardback first?

What happens when a beehive gets too full?

What is the difference between an optometrist and an ophthalmologist?

How can you tell when someone's lying?

Why do some people celebrate Christmas in July?

Why is it bad luck to walk under a ladder?

What is a conservatorship?

Previously Viewed

clearUnanswered Questions

What is time signature of ncr hymn?

Is Gianluca Ginoble gay?

Paano umusbong ang pagmamahal sa karunungan?

Why the eastern Terai is cooler than than western one OF NEPAL?

Who was giani maan singh jhaur?

What happened to Jeff Hewson of QVC fame?

Is the Montgomery Bus Boycott capitalized?

How do you get admission in junior college in pune?

Copyright © 2020 Multiply Media, LLC. All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Multiply.