Basic Electronics

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Batteries Specifications - Lithium, Zinc, Oxide, Alkaline

Lithium cells are rated nominally 3V (on-load), 3.5V (open circuit). Zinc Air Button Cells Nominal voltage on discharge is 1.2V

Symbols And Abbreviations

Abbreviations of Symbols used in electronics.

Ampacity Table

Ampacities of Insulated Conductors. The load current rating and the over current protection for conductor types shall not exceed 15 amperes for 14 AWG, 20 amperes for 12 AWG, and 30 amperes for 10 AWG alumin

INDUCTOR

inductor

When a length of wire is formed into a coil, as shown in Figure 1, it becomes a basic inductor. The terms coil and inductor are used interchangeably.

Transistor codes

There are three main series of transistor codes used in the UK:The first letter B is for silicon, A is for germanium (rarely used now). The second letter indicates the type; for example C means low power audio frequency; D means high power audio frequency; F means low power high frequency.

Resistance Conductance & Ohm's Law

Resistance Conductance and Ohm's Law. It is the property of a material due to which it opposes the flow of electric current. "R" represents it. It, s unit is called ohm.

TRANSFORMER

A transformer is an electrical device used to change the  value of an alternating voltage. transformers are widely used in electrical  work.

Resistor

resistor

Opposition to the flow of current is called resistance and the device or component used for this purpose is called resistor.

SUPERPOSITION THEOREM

Any linear bilateral circuit, which contain, G/R of same frequency the current that flows in any branch is the sum of the current's that would result from each G/R Working independently while other G/R.

OHM LAW

Ohm's law states that in an electric circuit the current is directly proportional to the applied voltage and inversely proportional to the resistance of the circuit.

Magnetism Rules

This rule is used for the determining the direction of magnetic field. If we rotate screw in the cork by a screwdriver.

THEVENIN TREOREM

thevenin theorem is a procedure by which we change a complex network in to simple network called thevenin's equivalent circuit.

Insulation Resistance Test on a Transformer

Transformer Insulation Resistance Test Insulation resistance test on a class 1 and class 2 transformers.

Faraday's law's of Electromagnetic induction

First Law of Faraday's Electromagnetic Induction state that whenever a conductor are placed in a varying magnetic field emf are induced which is called induced emf, if the conductor circuit are closed current are also induced which is called induced current.

TRANSFORMER CHARACTERISTICS

In Figure we can now look at the circuit from the example, redrawn with the calculated voltage and current values included.

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