Electricity and Magnetism > Inductance
DCS#
DC RL CIRCUIT
APPARATUS
900 H inductor
next to 105-06
large demonstration ammeter with 25 mA shunt
105-21-C
6 V battery
105-16-C
100 ohm resistor
105-80-G6
key switch
105-82-D5
DESCRIPTION
Close switch to show exponential rise of current.
NOTES
Inductor has an internal resistance of about 130
W
.
Its measured inductance is 450 H.
I
o
= V/R = 26 mA
t
= L/R = 2.0 s.
