Electric materials
EMF source with closed external circuit. Useful for electrician: electrical engineering and electronics
The reason for separating the charges and causing them to move in a closed circuit is called the electromotive force (emf, emf).…
Nonlinear electrical circuits. Useful for Electrical Engineering: Electrical and Electronics Engineering
Electrical circuits may include passive elements whose electrical resistance is significantly dependent on current or voltage, resulting in...
Electric circuits with direct current. Useful for Electrical Engineering: Electrical and Electronics Engineering
In a single-loop direct current circuit, the EMF directed inside the source of electrical energy from the negative pole to the positive,...
Star and triangle connection. Useful for Electrical Engineering: Electrical and Electronics Engineering
If there are three resistances forming three nodes, then such resistances form a passive triangle, and if there is only one node, then...
Kirchhoff's laws - formulas and examples of use.Useful for electrician: electrical engineering and electronics
Kirchhoff's laws establish the relationship between currents and voltages in branched electrical circuits of any type. Kirchhoff's laws are…
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Why is electric current dangerous?