Teacher explains RL, RC and RLC circuits. Students explain RL, RC, and RLC circuits. Calculator resistors, inductors, capacitors, AC source. Circuit diagrams, teacher demonstrates the operations of RL, Intructional Materials; RC, and RLC circuits.
CALCULATION OF CAPACITIVE REACTANCE AND INDUCTIVE REACTANCE (XC and XC)
Teacher calculates capacitive reactance and inductive reactance.
Students calculate Xc and XL in a circuit, e.g calculate XL in a circuit of frequency of 50HZ and inductance of 20H. Calculate XC in a circuit of frequency 10HZ and Intructional Materials; Capacitance of 100MF. Circuit Intructional Materials; Diagrams.
Concept of resonance frequency, series and parallel resonance.
Teacher explains resonance frequency, series and parallel resonance. Circuit diagrams. Students explain series and parallel Intructional Materials; Resonance.
Calculation of series and parallel resonance.
Teacher calculates series and parallel resonance students. Calculate series and parallel resonance.
Teacher explains power triangle, power factor and power factor correction.
Students participate in class, explain power and power factor in AC circuits.
Intructional Materials;Charts on power triangle.
POWER IN AC CIRCUITS
Advantages and disadvantages.
Power factor correction.
Calculation of power factor.
Teacher explains the advantages and disadvantages of power factor correction.
Students state the advantages and disadvantages of power factor correction.
Intructional Materials; Chart on power triangle and power factor.
Teacher calculates power factor.
Students calculate power factor.
POWER IN AC CIRCUITS
Q factor and bandwidth.
Teacher explains Q-factor and bandwidth (FH and FL).
Students explain Q-factor and bandwidth.
Intructional Materials; Calculator, power triangle circuit diagram.
Concept of transistors.
Biasing of transistors.
Teacher explains the concept of transistors. Leads discussion on biasing of a transistor. Students explain the concept of transistors, draw the transistor symbols. Explain biasing arrangement, draw transistor biasing arrangements. Transistors e.g bipolar, FET, JFET, MOSFET etc. charts showing pictures of transistors, it symbols.
TYPES OF TRANSISTORS
Bipolar (NPN and PNP) transistor.
Field effect transistor (FET)
(N-channel and P-channel).
MOSFET transistors, meaning and symbols.
Teacher discusses basic bipolar transistor circuits. Explains types of transistors and symbols.
Students draw and explain common emitter collector and base circuits. State types of transistors and symbols.