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EASA PART 66 Module 3 (Electrican Fundamental)Part4,Inductance/Inducto,DC Motor/Generator Theory,AC Theory,Resistive (R), Capacitive (C) and Inductive (L) Circuits

3.11 Inductance/ Inductor

2. Action of inducing a voltage in a conductor moving in a magnetic field;
3. Induction principles;
4. Effects of the following on the magnitude of an induced voltage: magnetic field strength, rate of change of flux, nuber of conductor turns;
5. Mutual induction;
6. The effect the rate of change of primary current and mutual inductance has on induced voltage;
7. Factors affecting mutual inductance: number of turns in coil, physical size of coil, permeability of coil, position of coils with respect to each other;
8. Lenz's Law and polarity determining rules;
9. Back emf, self induction;
10. Saturation point;
11. Principle uses of inductors;

3.12 DC Motor/Generator Theory

1. Basic motor and generator theory;
2. Construction and purpose of components in DC generator;
3. Operation of, and factors affecting output and direction of current flow in DC generators; Operation of, and factors affecting output power, torque, speed and direction of rotation of DC motors;
4. Series wound, shunt wound and compound motors;
5. Starter Generator construction.

3.13 AC Theory

1. Sinusoidal waveform: phase, period, frequency, cycle;
2. Instantaneous, average, root mean square, peak, peak to peak current values and calculations of these values, in relation to voltage, current and power Triangular/Square waves; Single/3 phase principles.

3.14 Resistive (R), Capacitive (C) and Inductive (L) Circuits

1. Phase relationship of voltage and current in L, C and R circuits, parallel, series and series parallel;
2. Power dissipation in L, C and R circuits;
3. Impedance, phase angle, power factor and current calculations;
4. True power, apparent power and reactive power calculations.

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