POWER is expressed in----. watts?

Yes, watts (W) is the unit of power in the International System of Units (SI).

Watts is used in power expression.

Yes, that is correct. Watts (W) is a measure of power and is commonly used to express the rate of energy transfer or the rate of doing work. It is defined as the amount of energy transferred per unit time, where one watt is equal to one joule per second. In many applications, such as electrical power systems or mechanical power systems, the power output or consumption is often expressed in watts.

watts

Watts (W) is the unit of power in the International System of Units (SI). One watt is defined as the ratio of the work done or energy transferred per unit time. It is equivalent to one Joule per second (J/s). Watts are used to express the rate of energy transfer or the rate of doing work. For example, a 100-watt lightbulb consumes electrical power at a rate of 100 joules per second, while a 1-kilowatt motor transfers mechanical power at a rate of 1000 joules per second.

Yes, power is commonly expressed in watts. To understand why power is measured in watts, we need to understand what power represents.

Power is the rate at which energy is transferred or converted per unit of time. It is a measure of how quickly work is done or energy is used. In the International System of Units (SI), power is measured in watts (symbol: W).

1 watt is defined as the power required to do work at a rate of 1 joule per second. A joule is the unit of energy, and we measure the amount of work or energy transferred in joules, while power tells us how quickly that work or energy is transferred.

To calculate power, we use the formula:

Power = Work / Time

Where work is measured in joules and time is measured in seconds. By dividing the amount of work done by the time taken to do it, we can determine the power in watts.

So, when you see power expressed in watts, it means you are looking at the rate of energy transfer or work done per second.