Electric materials
Three-phase electric circuits - history, structure, characteristics of voltage, current and power calculation «Useful for an electrician: electrical engineering and electronics
A three-phase generator is a synchronous electrical machine designed to create three harmonic EMFs shifted by 120 degrees in phase (actually, in...
Linear and non-linear elements of an electrical circuit. Useful for electrician: electrical engineering and electronics
Those elements of the electric circuit for which the dependence of the current on the voltage I (U) or the voltage on the current U (I),...
What is a load chain? Useful for electrician: electrical engineering and electronics
A load circuit is a part of an electrical circuit that consumes useful energy. The equivalent resistance of the load circuit can be: active...
How to calculate inductance. Useful for electrician: electrical engineering and electronics
Just as a body with mass in mechanics resists acceleration in space, exhibiting inertia, so inductance prevents change...
Oscillator circuit. Useful for electrician: electrical engineering and electronics
An oscillating circuit is a closed electrical circuit consisting of a coil and a capacitor. Let us denote the inductance of the coil by the letter L,...
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Why is electric current dangerous?