Electrical Energy and Power - Overview, Structure, Properties & Uses

Electrical Energy and Power - Definition, Formula, FAQs

Edited By Team Careers360 | Updated on May 31, 2022 01:06 PM IST

Energy Definition Physics or Energy Definition Science: It is the ability to do work that is called energy. The rate of doing work is called power. It can also be defined as the rate of change of energy. An object can have value for the power without doing any work.

What is Electrical Energy?

Electrical Energy comes from the potential energy or kinetic energy of charged particles. We can define electrical energy as the energy produced by the movement of electrons from one point to another. The movement of charged particles creates current or electricity.

Electrical energy into Mechanical Energy

Electric power can be converted into other forms of energy such as heat energy, light energy, movement etc. The most popular example is:

Fan: The fan in the car converts electrical energy into mechanical energy

Light bulb: Here the electric current is converted into light energy.

Energy is measured in

Energy is a complicated topic since, depending on the application, there are several different ways to measure it. Electrical, mechanical, chemical, thermal, and nuclear energy are examples of different types of energy.

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Unit of thermal energy measured

Thermal energy refers to the temperature differences between objects as well as the heat produced when energy is converted from one form to another. The energy content of fuel is measured in British Thermal Units (BTU or Btu) on a greater scale.

Electric energy measured

The attraction and repulsion of charged particles is the basis for electrical energy. Voltage is created by the intensity of the charge and the distance between particles.

A kilowatt-hour is a unit of measurement for transformed energy.

1000watts= 1 kilowatt (measuring power)

Watt-hour is a unit of

A watt-hour (Wh) is an energy unit that is used to calculate the amount of work done or generated. Household appliances and other electrical gadgets conduct "work," which necessitates the usage of electricity as a source of energy.

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What is electrical energy

Electrical energy definition: can be caused by kinetic energy or potential energy. It is largely due to potential energy, which is energy stored due to positions associated with charged particles or electric fields.

Symbol of electrical energy	E
Unit of electrical energy	Joule (J)
	Kilowatt-hour(kWh)
	Electron-Volt(eV)
Formula of electrical energy	E = QV Where, Q is charged V potential difference
Examples of electrical energy	Electricity prices go by telephone or electricity.
	Lightning.
	Batteries.
	Consistent electricity.
	Electric wheels produce electrical energy.
	Electricity is stored in capacitors.
	Audio speakers.
	Door bells.
Uses of electrical energy	Lighting, cooling, heating. Operating equipment, electronics, computers, equipment. Public transportation plans.

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What is Electric Power?

Power is often defined as the degree to which a task is performed. When this is done in relation to time and the electrical circuit, it is known as electric power. Similarly, electrical energy is defined as the rate at which electricity is transferred across the electrical circuit at each time point. Electric Power is versatile - it can be generated by generators in our homes and can be supplied with batteries used in devices. Electric Power in an electric circuit is the rate at which work is done or energy is transformed into an electrical circuit.

Electric Power formula-

To calculate power, the simplest equation is that the work done is divided by time.

P = W / t

W is work done and t is time.

Definition of electrical power - The rate at which work is performed in an electrical circuit. Simply put, it is a measure of how much energy is being used over a period.

Symbol	P
SI Unit of Electric Power	Watt, joule per second
Scale or Vector quantity	Scalar Quantity
Formula	P=VI

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Frequently Asked Questions (FAQs)

1. Define electric power and its SI unit.

Electrical energy can be caused by kinetic energy or potential energy. It is largely due to potential energy, which is energy stored due to positions associated with charged particles or electric fields. The SI unit of power is watts, one joule per second.

2. List the energy units.

Electrical units joules, kilowatt hour, electron-volt

3. Explain Electric Power.

Electricity measurement rate of power transmission per circuit at each time point.

4. Write the SI unit of Electric Power of electrical power.

The SI unit of Electric Power of electricity is watt.

5. What is an example of electrical energy?

Examples of electrical energy are lightning, batteries, and even electric eels.