eguruchela

List of formulas related to direct Current


Electric Current

I: current (A), q: charge (C), t: time

e33


Ohm's Law

U: electric potential difference between the ends of the resistor R

e34


Work Created By A Current (Joule's Law)

e35


Electrical Power

e36


Resistance

ρ: resistivity of the material (Ωm), l: length (m), A: cross-section area (a2)

e37

e38


Series Circuits

p5

e39

e40

e41


Parallel Circuits

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e39

e42

e43


Work Or Heat Energy Produced By A Resistor

44


Power Consumption Of A Resistor

45


Electromotive Force Of An Electrical Generator

W: work of force (J), q: charge(c)

46


Generators In Series

r: internal resistance of the generator

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Generators In Parallel

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Generators In Series-Parallel

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Work And Power Of Generator

H: Efficiency of genarator

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