| Electricity
and Magnetism > Semiconductors |
DCS#
5M10.90 |
USING
TRANSISTORS
-
APPARATUS
| 2N2222A transistor (Radio
Shack
276-2009) |
202-16-D2 |
| breadboard |
107-01-B2 |
| 9 V battery |
202-02-D1 |
| battery clip |
202-16-E2 |
| LED |
202-16-E2 |
| 220 ohm resistor |
202-16-E2 |
| 1000 ohm resistor |
202-16-E2 |
| 100 k resistor |
202-16-E2 |
| three pieces of hook-up
wire |
202-16-E2 |
| paper cup |
108A |
DESCRIPTION
Students
construct
the circuit shown below,
in which a transistor is used to control the brightness of the
LED, to
demonstrate the operation of a transistor as an amplifier.
