Electricity: Units
Gbogbo ọrọ náà
Circuits involve several quantities that look similar at first glance: current, charge, voltage, resistance, energy, and power. Each has its own unit, and mixing them up is one of the fastest ways to lose marks. A solid grasp of these units turns every electricity calculation into a routine substitution.
This reference lists the seven units the Edexcel specification requires for the Electricity section: ampere, coulomb, joule, ohm, second, volt, and watt. You will learn what each one measures, how they relate to one another, and how to recall them under exam conditions.
Ebumnobi
- Use the following units: ampere (A), coulomb (C), joule (J), ohm (ohm), second (s), volt (V) and watt (W)
Akọmọ Ojú-ẹkọ
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Ayẹwo Ẹkọ
Ekele diri gi maka imecha ihe karịrị na Electricity: Units. Ugbu a na ị na-enyochakwa isi echiche na echiche ndị dị mkpa, ọ bụ oge iji nwalee ihe ị ma. Ngwa a na-enye ụdị ajụjụ ọmụmụ dị iche iche emebere iji kwado nghọta gị wee nyere gị aka ịmata otú ị ghọtara ihe ndị a kụziri.
Ị ga-ahụ ngwakọta nke ụdị ajụjụ dị iche iche, gụnyere ajụjụ chọrọ ịhọrọ otu n’ime ọtụtụ azịza, ajụjụ chọrọ mkpirisi azịza, na ajụjụ ede ede. A na-arụpụta ajụjụ ọ bụla nke ọma iji nwalee akụkụ dị iche iche nke ihe ọmụma gị na nkà nke ịtụgharị uche.
Jiri akụkụ a nke nyocha ka ohere iji kụziere ihe ị matara banyere isiokwu ahụ ma chọpụta ebe ọ bụla ị nwere ike ịchọ ọmụmụ ihe ọzọ. Ekwela ka nsogbu ọ bụla ị na-eche ihu mee ka ị daa mba; kama, lee ha anya dị ka ohere maka ịzụlite onwe gị na imeziwanye.
- What is the SI unit of electric charge? A) A B) V C) C D) W Answer: C
- Resistance is measured in: A) volts B) amperes C) watts D) ohms Answer: D
- One volt is equivalent to: A) one joule per ampere B) one joule per coulomb C) one coulomb per second D) one watt per ampere Answer: B
- How many milliamps are in 2.5 A? A) 0.0025 mA B) 25 mA C) 250 mA D) 2500 mA Answer: D
- Which quantity is measured in watts? A) Energy B) Charge C) Power D) Resistance Answer: C
Ọ dị na ngwa Green Bridge
Budata ngwa Green Bridge CBT na ekwentị maọbụ kọmputa gị iji nweta akwụkwọ ndụmọdụ zuru oke, ajụjụ mmụta, na ndị ọzọ.
Ọ dị na ngwa Green Bridge
Budata ngwa Green Bridge CBT na ekwentị maọbụ kọmputa gị iji nweta akwụkwọ ndụmọdụ zuru oke, ajụjụ mmụta, na ndị ọzọ.
Àwọn Ìwé Tó Dáa Láti Kà
Meecha Ajụjụ Ule Ọmarịcha
Ị chọrọ ime ajụjụ ule ọmarịcha gbasara Electricity: Units? Budata ngwa Green Bridge CBT iji nweta ajụjụ ule ọmarịcha na nyocha zuru ezu gbasara isiokwu a.
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