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WOLFRAM|DEMONSTRATIONS PROJECT

RL Series Circuit

​
voltage (volts), V
1
inductance (henrys), L
0.1
resistance (ohms}, R
1
time (seconds)
1.34
RL circuit in series
T = 0.10
I = 1.00
V
R
= 1.00
V
L
= 1.52×
-6
10
This Demonstration shows the time dependence in a RL circuit of the current, voltage across the resistor
V
R
, and voltage across the inductor
V
L
. The selected variables are the DC voltage of the source
V
, the resistance
R
, and the inductance
L
. We derive the equations:
I(t)=
V
R
1-
-
R
L
t
e
,
V
R
(t)=V1-
-
R
L
t
e
, and
V
L
(t)=V
-
R
L
t
e
. You can observe their changes as you vary the time
t
. We also compute the time constant for this RL circuit:
T=
L
R
.
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