SEULU0601-0

ELECTRICAL SYSTEM

MENUINDEXSEULU0601-0 Electrical systemCONTENTS1. STATIC ELECTRICITY AND DIRECT CURRENT (DC) CIRCUIT1.1. Electric current, voltage, and resistance(1) Fundamentals of electricity(2) Electricity by friction(3) Forces acting among electrically charged bodies(4) Electrostatic induction(5) Electric current(6) The unit of electric current(7) Potential, voltage, electromotive force(8) Properties of conductors, insulators, and semiconductors(9) Electric resistance(10) Short circuit

1.2. Direct current circuits(1) Direct and alternating current(2) Ohm's Law(3) Resistor connections(4) Series connected resistors(5) Parallel connected resistors

1.3. Battery cell connections(1) Series connection(2) Parallel connection

1.4. Electric power(1) Power(2) Amount of electric power(3) Joule heat

2. THE MAGNETIC EFFECT OF ELECTRIC CURRENT2.1. Magnetism(1) Magnetism and magnetic lines of force(2) The magnetic field caused by an electric current

2.2. Magnetic force produced by an electric current(1) Fleming's left hand Law(2) Principle of the motor(3) Forces acting among parallel flowing currents

3. ELECTRO-MAGNETIC INDUCTION3.1. Forces of magnetic induction(1) Motion of a bar magnet and induced current in a coil(2) Motion of a conductor, and induced current in a conductor(3) Principle of the generator(4) Self-induction(5) Mutual-induction(6) Transformers

4. CAPACITORS4.1. Static electricity4.2. Electric capacity4.3. Capacitor charging and discharging

5. ALTERNATING CURRENT CIRCUIT5.1. Alternating current(1) Direct current and alternating current(2) Generation of alternating current(3) Representation of alternating current

5.2. Nature of alternating current and alternating current circuits(1) Alternating current in a resistor(2) Alternating current in a coil(3) Alternating current in a capacitor(4) Nature of alternating current circuits

5.3. 3-phase alternating current(1) Nature of 3-phase alternating current(2) Method of connecting the 3-phase current

6. SEMICONDUCTORS6.1. Semiconductor types and properties(1) Semiconductor type(2) Intrinsic semiconductors(3) Impurity semiconductors(4) Characteristics of semiconductors

6.2. Diode(1) Principle of the diode(2) Characteristics of the PN junction

6.3. Transistors(1) Principle of the transistor(2) Function of the transistor(3) Current amplification(4) Switching action(5) Transistor types

6.4. Features of semiconductor elements

7. WIRING DIAGRAMS AND SYMBOLS