c. current inductive
circuit. The inductance and capacitance a.
Inductive reactance (XL) the opposition a. given the formula:
X fL
L Ω
where
π 3. circuit, resistance only part the opposition cur-
rent flow.
.
However, a.2
Voltage and current relationships resistive, capacitive and inductive circuits.142 constant
f the frequency the supply
L the inductance the circuit by
X
V
I
L
L
L
R
Pure resistance
(R)
V and phase lags 90° leads 90°
Pure inductance
(L)
Pure capacitance
(C)
V
V
I
V V
I
I
I
I
L
V
I C
V
I
V V
I I
FIGURE 10.c.2. current inductive
circuit. causes the current the circuit lag behind the applied voltage,
as shown Fig. 10.c. circuit also cause an
opposition current flow, which call reactance.c. From
Ohm’s law:
R
V
I
R
R
( )
Ω
Definition
In any circuit, resistance defined as
opposition current flow.Alternating current theory and electrical machines
195
Resistance
In any circuit, resistance defined opposition current flow. causes the current the cir-
cuit lag behind the applied voltage.
Definition
Inductive reactance (XL) the opposi-
tion a
