Transcription of ELECTRONIC FORMULAS
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ELECTRONIC FORMULAS
ELECTRONIC FORMULAS . Ohm's Law FORMULAS for D-C Circuits. E ' IR '. P. ' PR E2. P ' I 2R ' EI '. I R. Ohm's Law FORMULAS for A-C Circuits and Power Factor. P PZ E 2 cos1. E ' IZ ' ' P ' I 2 Z cos1 ' IE cos1 '. I cos1 cos1 Z. In the above FORMULAS 1 is the angle of lead or lag between current and voltage and cos 1 = P/EI = power factor or pf. Active power (in watts) P R. pf ' ' pf '. Apparent power (in volt&s) EI Z. Note: Active power is the "resistive" power and equals the equivalent heating effect on water.
Conductance Reactance Formulas Impedance Formulas Q or Figure of Merit. DC Blocked DC Passes High Freq Blocked High Freq Passes DC Low Freq AC High Freq Inductor * Capacitor * Resister Pass Block Attenuate Attenuate * Attenuate * Attenuate ... tolerance. Thus, a resistor marked blue-red-gold-gold has a resistance of 6.2 ohms and a 5% tolerance ...
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