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35
Project #83
Project #84
Capacitors in Series
OBJECTIVE: To compare types of circuits.
Capacitors in Parallel
OBJECTIVE: To compare types of circuits.
Turn on the slide switch (S1), then press and release the press switch
(S2). The LED (D1) becomes bright when the 470μF capacitor charges
up with the press switch on, then the LED slowly gets dim after you
release the press switch.
Now turn off the slide switch. Repeat the test with the slide switch off;
you’ll notice the LED goes out much faster after you release the press
switch. The much smaller 100μF capacitor (C4) is now in series with
the 470μF and so reduces the total capacitance (electrical storage
capacity), and they discharge much faster. (Note that this is opposite to
how resistors in series work).
Turn off the slide switch (S1), then press and release the press switch
(S2). The LED (D1) becomes bright when the 100μF capacitor charges
up with the press switch on, then the LED slowly gets dim after you
release the press switch.
Now turn on the slide switch and repeat the test; you’ll notice the LED
goes out much slower after you release the press switch. The much
larger 470μF capacitor (C5) is now in parallel with the 100μF and so
increases the total capacitance (electrical storage capacity), and they
discharge much slower. (Note that this is opposite to how resistors in
parallel work.)
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