Electrical calculations
Calculation of potentiometer and compound shunt. Useful for electrician: electrical engineering and electronics
A potentiometer is a variable resistance with a slider that is included as shown in the figure. A voltage U is applied to points...
Electrolysis. Calculation examples. Useful for electrician: electrical engineering and electronics
Electrolysis is the decomposition of an electrolyte (a solution of salts, acids, bases) by means of an electric current. Electrolysis can only be done with...
Batteries. Calculation examples. Useful for electrician: electrical engineering and electronics
Batteries are electrochemical power sources that, after discharge, can be recharged using electric current drawn from...
Calculating the capacitance of a capacitor « Useful for electricians: electrical engineering and electronics
Capacitance C is the capacitor's ability to accept (accumulate and hold) the amount of electricity Q in ampereseconds or the charge Q in...
Dielectric strength of the insulation. Calculation examples. Useful for electrician: electrical engineering and electronics
With a gradual increase in the voltage U between conductors separated by a dielectric (insulation), for example capacitor plates or conducting wires, the intensity...
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Why is electric current dangerous?