What is the difference between AC and DC resistance?
The property of a substance or
material which oppose the flow of electricity through it is called resistance.
In Simple words, Resistance in AC
circuits is called Impedance. Or
The Overall resistance (Resistance, Inductive
reactance and Capacitive reactance) in AC circuits is called Impedance (Z).
Explanation:
When AC Current pass through a wire
(resistor, inductor), then current produces a magnetic field across that wire
which opposes the flow of AC Current in it along with the resistance of that
wire. This oppose cause is called Inductance or Inductance is the property of
Coil (or wire) due to which opposes any increase or decrease of current or flux
through it. Also, we know that inductance is only exist in AC because the
magnitude of current continuously changing
Inductive Reactance XL,
is the property of Coil or wire in an AC circuit which opposes the change in
the current. The unit of Inductive reactance is same as Resistance, capacitive
reactance i.e. Ohm (Ω) but the representative symbol of capacitive reactance is
XL.
Likewise,
Capacitive Reactance in a capacitive circuit is the
opposition to current flow in AC circuits only. The unit of capacitive
reactance is same as Resistance, Inductive reactance i.e. Ohm (Ω) but the
representative symbol of capacitive reactance is XC.
