Showing posts with label Capacitor Reactance. Show all posts
Showing posts with label Capacitor Reactance. Show all posts

Tuesday, 11 August 2026

Week 4 Term 3 2026 AC Electricity LCR Circuits

 

Homework

Basic Circuit Revision

  • Act 13A, p.205-206 Level 2 D.C. Circuit Revision


Internal Resistance of a Battery

  • Act 13B, p.210-211 Internal Resistance of a Battery

  • Ex 6B, P.261-262 Internal Resistance of a Battery


Resistor Networks (Resistors in Series and Parallel)

  • Ex 6A, p.251-253 Resistor Networks


Kirchhoff’s Laws

  • Act 13C, p.214-216 Kirchhoff's Laws

  • Ex 6C, p.267-272 Kirchhoff's Laws


Capacitors

  • Act 14A, p.240 Capacitance & Capacitors

  • Act 14B, p.244-245 Capacitor Networks & Energy

  • Act 14C, p.249-251 Charging & Discharging Capacitors

  • Ex 6D, p.277-280 Capacitor Energy

  • Ex 6E, p.283-284 Capacitors

  • Ex 6F, p.289-292 Capacitor Networks

  • Ex 6G, p.298-300 Charging & Discharging Capacitors


Inductors

  • Act 15A, p.259-260 Induced Voltage & Current

  • Act 15B, p.263-264 Transformers

  • Act 15C, p.268-269 Inductance

  • Act 15D, p.272-273 Voltage and Current Graphs for the Inductor

  • Ex 6H, p.303-305 Inductance in DC Circuits

  • Ex 6I, 308-310 Inductance: Self; Mutual; Time Constant; Energy Stored

  • Ex 6J, p.311-312 Transformers


AC Electricity

  • Act 16A, p.282-283 Peak and rms voltage and current

  • Act 16B, p.286 Capacitor Reactance

  • Act 16C, p.291-293 Voltage and Current in a RC circuit

  • Act 16D, p.295 Voltage Current and Impedance in a RC circuit

  • Act 16E, p.298 Inductor Reactance

  • Act 16F, p.303 Voltage Current and Impedance in a RL circuit

  • Act 16G, p.306 The LCR series circuit

  • Act 16H, 310-312 Resonance

  • Ex 6L, p.316-317, RC Circuits

  • Ex 6M, 319-320, LC Circuits

  • Ex 6N, 321-324, LCR Circuits



Capacitor Reactance

Inductor Reactance

Resistors in AC Circuits

Capacitors in AC Circuits

Inductors in AC Circuits

RCL in AC Circuits - Part 1

RCL in AC Circuits - Part 2

Capacitors in AC Circuits - Part 3

Inductors in AC Circuits - Part 3

RC in AC Circuits - Part 4

RL in AC CIrcuits - Part 4

RCL in AC Circuits - Part 3

Summary of RCL Circuits

RCL Resonance


RCL Phase Relationships





Impedance of a Capacitor Resistor Circuit
Z = √(XC2 + R2)
θ = tan-1(-XC/R) = tan-1(-VC/VR)
The Capacitor Reactance is 90° behind the Resistance
The Capacitor Voltage is 90° behind the Resistor Voltage


Impedance of a Inductor Resistor Circuit
Z = √(XL2 + R2)
θ = tan-1(XL/R) = tan-1(VL/VR)
The Inductor Reactance is 90° ahead of the Resistance
The Inductor Voltage is 90° ahead of the Resistor Voltage


Impedance of a RCL Circuit
Z = √((XL - XC)2+ R2)
θ = tan-1((XL - XC)/R) = tan-1((VL - VC)/VR)

Resonance


Understanding Inductance and Back EMF



A.C. Circuits & Resonance




Thursday, 31 July 2025

Week 3 Term 3 2025 Capacitors

 Basic Circuit Revision

  • Act 13A, p.205-206 Level 2 D.C. Circuit Revision


Internal Resistance of a Battery

  • Act 13B, p.210-211 Internal Resistance of a Battery

  • Ex 6B, P.261-262 Internal Resistance of a Battery


Resistor Networks (Resistors in Series and Parallel)

  • Ex 6A, p.251-253 Resistor Networks


Kirchhoff’s Laws

  • Act 13C, p.214-216 Kirchhoff's Laws

  • Ex 6C, p.267-272 Kirchhoff's Laws


Capacitors

  • Act 14A, p.240 Capacitance & Capacitors

  • Act 14B, p.244-245 Capacitor Networks & Energy

  • Act 14C, p.249-251 Charging & Discharging Capacitors

  • Ex 6D, p.277-280 Capacitor Energy

  • Ex 6E, p.283-284 Capacitors

  • Ex 6F, p.289-292 Capacitor Networks

  • Ex 6G, p.298-300 Charging & Discharging Capacitors



Capacitor
C = Q/V


Capacitors
Basic Definition
Physical Parameters
Energy Stored
Ep = ½ QV


Capacitors & Capacitance

Capacitors Explained

Dielectric

An insulating material placed in between the capacitor plates to increase the Capacitance

C = 𝜺r𝜺oA/d






Dielectrics in Capacitors

PhET Capacitor Lab Basics - App


Capacitor Circuits


Capacitors in Series
Calculating Voltage Charge and Total Capacitance

Capacitors in Parallel
Calculating Voltage Charge and Total Capacitance


Capacitors in Parallel vs Capacitors in Series


Capacitors in Combination
Series & Parallel Capacitors

Capacitors in Combination
Patrallel & Series Capacitors

Capacitors in Series
Calculating Voltage Drop


Capacitors in Series
Calculating the Charge Stored

Capacitors in Series
Calculating the Equivalent Capacitance


Capacitors in Parallel
Calculating Voltage Drop

Capacitors in Parallel
Calculating the Charge Stored


Capacitors in Parallel
Calculating the Equivalent Capacitance


Capacitor Charge & Discharge



RC Circuits 1: Charging and Discharging a Capacitor