Electronics Handbook/Glossary

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Charge[edit]

Charge refers to quantities of Electric Charge of an object

1 C = Number of Electrons e

Voltage[edit]

Voltage is defined as Work done on a Charge

Q = \int W dt

Current[edit]

Current is defined as ratio of Charge over Time

I = \frac{Q}{t}
I , Current
Q , Charge
t , Time
1 A = \frac{1 C}{1 s}

Resistance[edit]

R = \frac{V}{I}
R , Resistance
V , Voltage
I , Current

Conductance[edit]

G = \frac{1}{R}
G = \frac{I}{V}
G , Conductance
R , Resistance
I , Current
V , Volatge

Reactance[edit]

X = ± j ω T
X , Reactance
ω , Angular of Frequency
T , Time Constant

Impedance[edit]

Z = R + X
Z , Impedance
R , Resistance
X , Reactance

Power[edit]

Power Loss[edit]

P R = I V = I^2 R = \frac{V^2}{R}

Power Delivered[edit]

P = P_V - P_R = VI - I^2R = VI - \frac{V^2}{R}

Power Stored[edit]

P_C = \frac{1}{2} C V^2
P_L = \frac{1}{2} L I^2