Energy And Voltage In Circuits
Akopọ
Every circuit question on the Edexcel papers comes down to understanding how current, voltage and resistance relate to each other. Whether components are wired in series or parallel changes the rules, and knowing those rules lets you solve any circuit problem.
In this lesson you will learn about series and parallel circuits, V = IR, Q = It, I-V characteristics of components, LDRs, thermistors, current conservation, voltage sharing, and E = QV.
Awọn Afojusun
- Explain why a series or parallel circuit is more appropriate for particular applications
- 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, metal filament lamps and diodes
- Describe the qualitative effect of changing resistance on the current in a circuit
- Describe the qualitative variation of resistance of LDRs with illumination and of thermistors with temperature
- Know that lamps and LEDs can be used to indicate the presence of a current in a circuit
- Know and use the relationship: voltage = current x resistance
- Know that current is the rate of flow of charge
- Know and use the relationship: charge = current x time
- Know that electric current in solid metallic conductors is a flow of negatively charged electrons
- Understand why current is conserved at a junction in a circuit
- Know that the voltage across two components connected in parallel is the same
- Calculate the currents, voltages and resistances of two resistive components connected in a series circuit
- Know that voltage is the energy transferred per unit charge passed and the volt is a joule per coulomb
- Know and use the relationship: energy transferred = charge x voltage
Akọ̀wé Ẹ̀kọ́
O wa lori ohun elo Green Bridge
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Ìdánwò Ẹ̀kọ́
Oriire fun ipari ẹkọ lori Energy And Voltage In Circuits. Ni bayi ti o ti ṣawari naa awọn imọran bọtini ati awọn imọran, o to akoko lati fi imọ rẹ si idanwo. Ẹka yii nfunni ni ọpọlọpọ awọn adaṣe awọn ibeere ti a ṣe lati fun oye rẹ lokun ati ṣe iranlọwọ fun ọ lati ṣe iwọn oye ohun elo naa.
Iwọ yoo pade adalu awọn iru ibeere, pẹlu awọn ibeere olumulo pupọ, awọn ibeere idahun kukuru, ati awọn ibeere iwe kikọ. Gbogbo ibeere kọọkan ni a ṣe pẹlu iṣaro lati ṣe ayẹwo awọn ẹya oriṣiriṣi ti imọ rẹ ati awọn ogbon ironu pataki.
Lo ise abala yii gege bi anfaani lati mu oye re lori koko-ọrọ naa lagbara ati lati ṣe idanimọ eyikeyi agbegbe ti o le nilo afikun ikẹkọ. Maṣe jẹ ki awọn italaya eyikeyi ti o ba pade da ọ lójú; dipo, wo wọn gẹgẹ bi awọn anfaani fun idagbasoke ati ilọsiwaju.
- In a series circuit, current is: A) Different through each component B) The same through all components C) Zero D) Shared equally between components Answer: B
- V = IR. If V = 12 V and R = 4 ohms, I is: A) 48 A B) 3 A C) 16 A D) 0.33 A Answer: B
- In parallel, the voltage across each branch is: A) Shared equally B) Zero C) The same as the supply D) Doubled Answer: C
- An LDR in darkness has: A) Low resistance B) High resistance C) Zero resistance D) Infinite conductance Answer: B
- 1 volt equals: A) 1 joule per ampere B) 1 joule per coulomb C) 1 coulomb per second D) 1 watt per ampere Answer: B
O wa lori ohun elo Green Bridge
Gba ohun elo Green Bridge CBT sori foonu tabi kọmputa rẹ lati ri awọn akọsilẹ ẹkọ ni kikun, awọn ibeere adaṣe, ati diẹ sii.
O wa lori ohun elo Green Bridge
Gba ohun elo Green Bridge CBT sori foonu tabi kọmputa rẹ lati ri awọn akọsilẹ ẹkọ ni kikun, awọn ibeere adaṣe, ati diẹ sii.
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Ṣe o fẹ ṣe adaṣe awọn ibeere idanwo adaṣe nipa Energy And Voltage In Circuits? Ṣe igbasilẹ ohun elo Green Bridge CBT lati wọle si awọn ibeere idanwo adaṣe ati awọn ayẹwo adaṣe kikun fun koko-ọrọ yii.
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