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Learning Outcomes
Learning Outcomes
Use this picture as a map to study or revise AC
The following videos will guide you through the SciPad - discuss your questions with your teachers or post your questions on Google Classroom
01 Equations of V and I in AC
01 Equations of V and I in AC
2 minutes - SciPad p.324-325
02 RMS values
02 RMS values
2 minutes - SciPad p.326-327
03 Voltages for RC
03 Voltages for RC
7 minutes - SciPad p.332
04 Voltages for RL
04 Voltages for RL
8 minutes - SciPad p.338
Reactances
Reactances
Capacitive and Inductive
Capacitive and Inductive
05 Reactance of a Capacitor
05 Reactance of a Capacitor
3 minutes - SciPad 320-321
06 Reactance of an Inductor
06 Reactance of an Inductor
2 minutes - SciPad 336-337
Voltage Phasors - RC and RL
Voltage Phasors - RC and RL
07 Voltage Phasors of RC and RL
07 Voltage Phasors of RC and RL
10 minutes
RC - SciPad p.333
RL - SciPad p.339
08 Examples of RC
08 Examples of RC
8 minutes - SciPad p.334
09 Examples of RL
09 Examples of RL
5 minutes - SciPad p.340
LCR - Impedance
LCR - Impedance
10 Voltage Phasors for LCR
10 Voltage Phasors for LCR
3 minutes - SciPad p.342
11 Example of LCR voltage
11 Example of LCR voltage
6 minutes - SciPad p. 342
12 Impedance
12 Impedance
5 minutes - SciPad p.345-347
13 Example of Impedance
13 Example of Impedance
8 minutes - SciPad p.346
LCR - Resonance
LCR - Resonance
More videos will be available soon - please come back to check them out
More videos will be available soon - please come back to check them out
Resonance in LCR - p.348
Resonance Frequency - p.349
LC Oscillations
LC Oscillations
3 minutes
Resonance Circuits
Resonance Circuits
7 minutes
Review Questions:
Review Questions:
Use these questions to test your understandings, whether you can ...
Use these questions to test your understandings, whether you can ...
Identify peak (maximum) voltage, current and power from graphs.
Calculate instantaneous, peak and RMS voltages and currents.
Identify the period from a graph, and convert this to a frequency and angular frequency.
Sketch curves that illustrate the voltage, current and power for an AC circuit.
Compare and contrast reactance and resistance.
Calculate capacitive reactance and describe the factors that affect it.
Use voltage phasors to solve problems for RC circuits.
Calculate inductive reactance and describe the factors that affect it.
Use voltage phasors to solve problems for RL circuits.
Explain how capacitive and inductive reactances interact in LCR circuits.
Use voltage phasors to solve problems for LCR circuits.
Describe the phase of the supply voltage relative to the current or voltage across the resistor.
Use reactance and resistance phasors to determine the impedance of an LCR circuit.
Solve problems that link current, voltage and impedance.
Describe the concept of resonance.
Sketch graphs that illustrate the concept of resonance.
Explain the conditions that are required for resonance to occur.
Calculate the resonant frequency of an LCR circuit
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