Practical Electronics/Basic Theory/General Formulae
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Charge[edit | edit source]
Charge refers to quantities of Electric Charge of an object
- 1 C = Number of Electrons e
Voltage[edit | edit source]
Voltage is defined as Work done on a Charge
Current[edit | edit source]
Current is defined as ratio of Charge over Time
-
- I , Current
- Q , Charge
- t , Time
Resistance[edit | edit source]
-
- R , Resistance
- V , Voltage
- I , Current
Conductance[edit | edit source]
-
- G , Conductance
- R , Resistance
- I , Current
- V , Volatge
Reactance[edit | edit source]
- X = ± j ω T
- X , Reactance
- ω , Angular of Frequency
- T , Time Constant
Impedance[edit | edit source]
- Z = R + X
- Z , Impedance
- R , Resistance
- X , Reactance
Power[edit | edit source]
Power Loss[edit | edit source]
- P R = I V = =