Elenco Snap Circuits® Deluxe Sound & Light Combo - Manual (Page 85)

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Project 161 Current Controllers -
Series
Project 162 Current Controllers -
Parallel
Resistors are used to control the
amount of current through a
circuit. Increasing the resistance
decreases the current.
Turn on either or both switches (S1 & S2) and
compare the white LED (D6) brightness.
This circuit has the 100W resistor (R1), the 5.1kW
resistor (R3), and the 100kW resistor (R5)
arranged in series. The switches are used to
bypass the larger resistors. The largest resistor
controls the brightness in this arrangement.
Turn on either or both switches (S1 & S2) and compare the white LED
(D6) brightness.
This circuit has the 100W resistor (R1), the 5.1kW resistor (R3), and the
100kW resistor (R5) arranged in parallel. The switches are used to
disconnect the smaller resistors. The smallest resistor controls the
brightness in this arrangement.
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