ALLIED'S ELECTRONICS DATA HANDBOOK

Transient I and E in LCR Circuits (cont.)

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Voltage is Applied to a De-energized Inductive Circuit   An Energized Inductive Circuit is Short Circuited
 
E  =  applied potential.   E  =  counter potential induced in coil when
Sw is closed.
 
 
 


Steady State Current Flow

In a Capacitive Circuit   In an Inductive Circuit
     In a capacitive circuit, where resistance loss components
may be considered as negligible, the flow of current at a given
alternating potential of constant frequency, is expressed by
       In an Inductive circuit, where inherent resistance and
capacitance components may be so low as to be negligible,
the flow of current at a given alternating potential of a
constant frequency, is expressed by
 
  where
 
 
I
XC
E
=
=
=
current in amperes,
capacitive reactance of the circuit in ohms,
applied potential in volts.
    where
 
 
I
XL
E
=
=
=
current in amperes,
Inductive reactance of the circuit in ohms,
applied potential in volts.

 

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