Repair of electrical equipment
Lenz's rule, direction of induction current
Lenz's rule allows you to determine the direction of the induction current in the circuit. It states: “the direction of the induction current always…
Power supply and electrical energy. Useful for Electrical Engineering: Electrical and Electronics Engineering
Electric energy is the potential work that an electric charge can do in an electromagnetic field. For a while, electrical energy can…
Inductor energy. Useful for Electrical Engineering: Electrical and Electronics Engineering
The energy of the inductor (W) is the energy of the magnetic field generated by the electric current I flowing through the wire of this coil....
How to find power in an AC circuit
AC power is not the same as DC power. Everyone knows that direct current can heat up a resistive load. And if...
Basic electrical quantities: charge, voltage, current, power, resistance «Useful for an electrician: electrical engineering and electronics
The most important physical phenomenon in electric circuits is the movement of electric charge. There are two types of charges in nature - positive...
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Why is electric current dangerous?