Circuits with XL Alone
X L values in series
let two inductive reactances X L 1 and X L 2 are connected in series and has value 50 ohm and 50 ohm respectively.
100 volts A C voltage source is applied.
we can find series current flowing in the circuit by ohm's law.
So current I is equal to voltage V T upon total inductive reactance X L T.
Total inductive reactance X L T is equal to X L 1 plus X L 2.
Voltage across X L 1 is V 1 is equal to series current I into X L 1.
Voltage across X L 2 is V 2 is equal to series current I into X L 2.
Inductive reactance X L is a phasor quantity with phase angle 90 degree.
Voltage across any X L leads the current through it by 90 degree.
Current I is common to all series component hence it is reference phasor.
Now inductive current I L values in parallel
Now Let two inductive reactances are connected in parallel and 100 volts A C source is applied.
The current flowing through inductive reactance 1 is I 1 is equal to V A upon X L 1.
The current flowing through inductive reactance 2 is I 2 is equal to V A upon X L 2.
So the total current is equal to current I 1 plus current I 2.
The figure b shows the phasor diagram.
Voltage V A is common to both the branch hence it is reference phasor.
And it is taken horizontal.
Phase angle between inductive current and voltage is same 90 degree.