answersLogoWhite

0

Power refers to energy transfer per unit time; the SI unit of power is the watt; 1 watt is 1 joule/second.

There are several equations that involve power; the most basic one, of course, is based on the definition of power:

power = energy / time

There are several other equations for power; for example, the following equations are commonly used, specifically in electrical circuits:

P = IV

P = I2R

P = V2/R

... where P = power, I = current, V = voltage, R = resistance.

User Avatar

Wiki User

11y ago

What else can I help you with?

Related Questions

What is the formula for caculating board feet in inches?

By unit of length and distance and conversion ,we can say that 1 feet =12 inches


How can you express the equation for power?

It is the amount of energy consumed per unit of time.


What is the fomular for caculating power of an object?

The formula for calculating power is power = work/time, where power is measured in watts (W), work is measured in joules (J), and time is measured in seconds (s).


What is the unit of q in the given equation?

The unit of q in the given equation is not provided.


When caculating the percentage rate?

A percentage can not be a rate.


What is the chemical equation for power?

Power hasn't a chemical equation.


What is the light power equation and how is it used in physics?

The light power equation, also known as the radiant flux equation, is P E/t, where P represents power, E represents energy, and t represents time. This equation is used in physics to calculate the amount of energy transferred by light per unit of time. It helps in understanding the intensity of light and its impact on various phenomena, such as heating, illumination, and photochemical reactions.


What is the equation for wattage?

Wattage = voltage times amperage. That's for DC. For AC there is a power factor PF = cos phi you have do multiply with.AnswerThe above answer suggests that power ('wattage') is an electrical unit, which it is not. In fact, power is defined as the rate of doing work, so the basic equation is work divided by time.


What is the equation 2 to the power of 4?

2 to the power of 4 is an expression, it is not an equation.


Which items are used in caculating the gnp?

wages,rents,interest,profits


What is the formula for caculating average speed?

(average distance)/(average time)


What is the percentage germination and how can one determine it?

the percent is x100 and you can determine it by caculating