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

.