Unsa ang Electrical Energy Definition Formula Unit of Electrical Energy

Unsa ang Electrical Energy?

Bago matumong unsa ang electrical energy, sulayi nato pag-ila sa potential difference tali duha ka puntos sa usa ka electric field.

Suppose potential difference between point A and point B in an electric is v volts.

As per the definition of potential difference we can say, if one positive unit electrical charge that is a body containing one-coulomb positive charge travels from point A to point B, it will do v joules work.

Now instead of one-coulomb charge if q coulomb charge moves from point A to B, it will do vq joules work.

If the time taken by the q coulomb charge to travel from point A to B is t second, then we can write the rate of work done as

Again, we define the work done per second as power. In that case, the term

would be electrical power. In differential form, we can write, electric power

Watt is the unit of power.

Now, if we place a conductor in between A and B, and through which the quantity of electric charge q coulomb is passing. The charge passing through a cross-section of the conductor per unit time (second) is

It is nothing but the electric current i, through the conductor.
Now, we can write,

If this current flows through the conductor for a time t, we can say the total work done by the charge is

We define this as electrical energy. So, we can say,

Definisyun sa Electrical Energy

Ang electrical energy mao ang gihimo sa electric charge. Kon ang current i ampere magbutang sa usa ka conductor o sa uban pang conductive element sa potential difference v volts sa dili pa, para sa oras t segundo, ang electrical energy mao,

Formula sa Electrical Energy

Ang ekspresyon sa electric power mao

Ang electrical energy mao

Yunit sa Electrical Energy

Basihan, ang yunit sa electrical energy mao ang joule. Kini sama sa usa ka watt X usa ka segundo. Komersyalmente, gigamit usab nami uban pang yunit sa electrical energy sama sa watt-hours, kilo watt hours, megawatt hours, etc.

Watt Hours

Kon usa ka watt power gi-consume sa usa ka oras, ang energy nga gi-consume mao ang usa ka watt-hour.

BOT Unit o Board of Trade Unit o Kwh

Ang praktikal ug komersyal nga yunit sa electrical energy mao ang kilowatt hour. Ang fundamental nga komersyal nga yunit mao ang watt-hour ug usa ka kilowatt hour sama sa 1000 watt hours. Ang mga kompanya sa electrical supply moguba og electric energy charges gikan sa ilang consumer pinaagi sa kilowatt hour unit basis. Kini nga kilowatt hour mao ang board of trade unit o BOT unit.

Source: Electrical4u

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