Madda a Yawancin Kashi na Noma Kula da Takardunsa Kashi na Noma

Zai da shi da na Energy

Idan kana bayar da zai da shi da zai da shi da energy ita ce, za a iya duba potential difference daga baki daya zuwa baki biyu a cikin electric field.

Idan potential difference daga baki A zuwa baki B a cikin electric field yana cikin v volts.

Kamar yadda aka fassara potential difference, za a iya cewa, idan wata body da ke ciki da one-coulomb positive charge ya yi hankali daga baki A zuwa baki B, zai yi v joules work.

Tana halayi, idan q coulomb charge ya yi hankali daga baki A zuwa B, zai yi vq joules work.

Idan lokacin da q coulomb charge ya yi hankali daga baki A zuwa B yana cikin t second, za a iya rubuta rate of work done as

Sau, ake fassara work done per second as power. Idan haka, term

za a iya zama electrical power. A differential form, za a iya rubuta, electric power

Watt shine unit of power.

Daga baka, idan muna koyar da conductor a kan A da B, kuma 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.
Tana halayi, za a iya rubuta,

Idan this current flows through the conductor for a time t, za a iya cewa total work done by the charge is

Ake fassara wannan as electrical energy. Tana halayi, za a iya cewa,

Zai da shi da Energy Definition

Zai da shi da energy shine work done by electric charge. Idan current i ampere flows through a conductor or through any other conductive element of potential difference v volts across it, for time t second, the electric energy is,

Zai da shi da Energy Formula

Expression of electric power is

The electrical energy is

Unit of Electrical Energy

Basically, za a iya samun unit of electrical energy as joule. This equals to one watt X one second. Commercially, za su iya amfani da wasu units of electrical energy, such as watt-hours, kilo watt hours, megawatt hours etc.

Watt Hours

Idan one watt power is being consumed for 1 hour time, the energy consumed is one watt-hour.

BOT Unit or Board of Trade Unit or Kwh

Practical, as well as a commercial unit of electrical energy, is kilowatt hour. The fundamental commercial unit is watt-hour and one kilowatt hour implies 1000 watt hours. The electrical supply companies take electric energy charges from their consumer per kilowatt hour unit basis. This kilowatt hour is board of trade unit that is BOT unit.

Source: Electrical4u

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