Current And Voltage In Circuits
Gbogbo ọrọ náà
Every electronic device you use relies on electric current flowing through a circuit. Understanding how current and voltage behave in different circuit arrangements is essential for predicting how components work together.
In this lesson you will learn what current and voltage really measure, how to use Ohm's law to calculate resistance, and how current and voltage distribute themselves in series circuits. You will also explore I-V characteristics for resistors, filament lamps and diodes - a favourite topic on Edexcel papers.
Ebumnobi
- Understand how the current in a series circuit depends on the applied voltage and the number and nature of other components
- Describe how current varies with voltage in wires, resistors and metal filament lamps, and how to investigate this experimentally
- Describe the qualitative effect of changing resistance on the current in a circuit
- Know that lamps and LEDs can be used to indicate the presence of a current in a circuit
- Know and use the relationship between voltage, current and resistance: V = I x R
- Know that current is the rate of flow of charge
- Know that electric current in solid metallic conductors is a flow of negatively charged electrons
- Calculate the currents, voltages and resistances of two resistive components connected in a series circuit
Maapụ uche
E seela isiokwu a ka ị hụ otu echiche si ejikọta.
Mepee maapụ uche na ngwa
Kaadị ncheta
Omume ncheta ngwa ngwa n'ihe a na-anwale n'isiokwu a.
Mee omume kaadị ndị a na ngwa
Akwụkwọ Ọmụmụ
Ndetu Nkuzi Zuru Ezu di na Ngwa Green Bridge
Nweta ngwa Green Bridge CBT na ekwenti gi ma o bu kompiuta maka ulo akwukwo IGCSE zuru oke: akwukwo ule ndi gara aga, usoro nyocha, eserese uche, kaadi omumu na nkuzi olu.
Nnyocha Ọmụmụ
Ekele diri gi maka imecha ihe karịrị na Current And Voltage In Circuits. 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.
- Electric current in a metal wire is a flow of: A) Protons B) Neutrons C) Electrons D) Ions Answer: C
- An ammeter should be connected: A) In parallel with the component B) In series with the component C) Across the battery D) It does not matter Answer: B
- Two resistors of 6 ohms and 4 ohms are connected in series. What is the total resistance? A) 2.4 ohms B) 10 ohms C) 24 ohms D) 1.5 ohms Answer: B
- The I-V graph for an ohmic conductor is: A) A curve through the origin B) A straight line through the origin C) A horizontal line D) A line that starts at 0.7 V Answer: B
- In a series circuit, the current: A) Is largest near the battery B) Splits between components C) Is the same at all points D) Depends on the voltmeter reading Answer: C
Rue ajuju ndi a n'ime ngwa ahu
Rue ajuju ndi a n'ime ngwa ahu
Akwụkwọ A Na-atụ Aro
Mụtakwuo ihe site na isi mmalite mepere emepe
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Akụkụ akwụkwọ
Ohm's law
Describe how current is related to charge and time, and distinguish between direct current and alternating current
"Physics: Ohm's law" by OpenStax, OpenStax, Rice University, licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Source: https://openstax.org/books/physics/pages/19-1-ohms-law. Access for free at https://openstax.org/books/physics/pages/1-introduction
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Akụkụ akwụkwọ
Series Circuits
Interpret circuit diagrams and diagram basic circuit elements
"Physics: Series Circuits" by OpenStax, OpenStax, Rice University, licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Source: https://openstax.org/books/physics/pages/19-2-series-circuits. Access for free at https://openstax.org/books/physics/pages/1-introduction
Ndị otu ndị ọzọ bipụtara ha n'okpuru ikike mepere emepe, anyị na-ekele ha dị ka ha si chọọ. Njikọ na-emepe saịtị ha.
Meecha Ajụjụ Ule Ọmarịcha
Ị chọrọ ime ajụjụ ule ọmarịcha gbasara Current And Voltage In Circuits? Budata ngwa Green Bridge CBT iji nweta ajụjụ ule ọmarịcha na nyocha zuru ezu gbasara isiokwu a.
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