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Light-controlled transistor I, light barrier

Light-controlled transistor I, light barrier

LP4.1.4.4

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Description

In this experiment, the students set up a light barrier. Using the voltage drop at a photo resistor, a transistor is controlled which functions as a switch. In a second setup, a relay is added to the experiment to make it possible to switch the relay instead of the lamp directly.

Components of equipment sets

1	57867 4	Transistor BD 137, NPN, e.b., STE 4/50
1	57921 4	Relay with change-over switch STE 4/50
1	57681 4	Plug-in board safety socket, 20/10
2	57681 4	Plug-in board safety socket, 20/10
1	57732 4	Resistor 100 Ohm, STE 2/19
1	57744 4	Resistor 1 kOhm, STE 2/19
1	57756 4	Resistor 10 kOhm, STE 2/19
1	57782 8	Variable resistor 47 kOhm, STE 2/19
2	57905 8	Lamp holder E10, lateral, STE 2/19
1	57913 8	Toggle switch STE 2/19
1	57802 4	Photoresistor LDR 05, STE 2/19
1	50148 4	Bridging plugs STE 2/19, set of 10
2	500621 4	Safety experiment cable, 50 cm, red
2	500622 4	Safety experiment cable, 50 cm, blue
1	521488	AC/DC power supply 0...12 V/3 A
1	50507 4	Bulbs 4 V/0,04 A/0,16 W, E10, set of 10
1	50506 4	Bulbs 3,7 V/0,3 A/1,11 W, E10, set of 10

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Light-controlled transistor I, light barrier

Description

Components of equipment sets

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