# What starting with w is a unit of electrical power?

The watt, which is equal to 1 joule/second.

### What is the SI unit of power?

The SI units for mechanical and electrical Power are the Watt (W), and the Watt (electrical) (We) respectively. Power is the rate of doing work, or at which energy is converted. It can be thought of as - "amount of energy used to perform work, or converted from one form to another, in a specified period of time, namely, in a second". The equation is P=W/t, where P is Power, W is the work done…

### How can you calculate electrical power?

Electrical power is measured in Watts (Unit) represented by 'W' (Symbol). To calculate it, you multiply the supply voltage by the current taken in by the device/equipment/machine you're operating. Anyway, let's say you had a heater which had a current of 16 Amps and took a single-phase supply voltage of 230V (a normal house supply): To get power, you would write the following formula: W = V x I Which translates as: Power = Voltage…

### What is si unit of power?

The SI units for mechanical and electrical Power are the Watt (W), and the Watt (electrical) (We) respectively. Power is the rate of doing work, or that energy is converted. It can be thought of as - "amount of energy used to perform work, or converted from one form to another, in a specified period of time, namely, in a second". The equation is P=W/t, where P is Power, W is the work done and…

### Define work and power?

Work (W) is defined as 'energy in transit', and describes the conversion of one form of energy into another -for example, when an electric motor converts electrical energy into mechanical energy, it is doing work. The SI unit of measurement for work is the joule (J). Another commonly-encountered unit of measurement for work is the watt hour (W.h). Power (P) is the rate of doing work. The SI unit for power is the watt (W)…

### What is the definition of a watt?

From The Fact Monster: (http://www.factmonster.com) watt [for James Watt], abbr. W, unit of power, or work done per unit time, equal to 1 joule per second. It is used as a measure of electrical and mechanical power. One watt is the amount of power that is delivered to a component of an electric circuit when a current of 1 ampere flows through the component and a voltage of 1 volt exists across it. The derivative…

### In the Energy category what is power?

Power Rate of doing work with respect to time is called power. Mathematical formula of power Power = work / time Unit of power The si unit of power is watt It is a scalar quantity. Definition of watt If a body does a work of one joule in one second then its power will be one watt (W). The bigger units of power: 1 KW = 1,000 W 1 MW = 1,000 KW =…

### What is the unit for measuring electrical power?

Electrical power is measured in watts. Answer Power is measured in watts. There is no such thing as 'electrical power' as power is simply a rate. volt The basic unit of electrical power is the watt. If the power is very large, then kilowatts (thousands of watts) or megawatts (millions of watts) are also used. Power is simply a rate, so you cannot really have 'electrical' power, 'mechanical' power, etc. In the SI system of…