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NTC
Component
A
Resistors
CDS
In electronics, it's a common problem that
there might be too much current flowing
— which can be dangerous for certain
C
electronic components. Light-emitting
diodes — miniature electronic lights —
can overheat, for example, and be
destroyed if they get too much current.
That's why you need resistors, which act
like little "current brakes." Their ability to
put the brakes on current is indicated in
ohms (Ω) and kilohms (kΩ). The more ohms
a resistor has, the greater its braking
Component
Electrolytic
capacitors
Capacitors are able to store electric
current, just like a battery. Their
capacitance, or how much current they
can store, is indicated in "farads." Usually,
NTC
though, 1 farad is much too much. That's
why you typically work with a much
smaller unit of measure, the "microfarad"
— one millionth of a farad! The
abbreviation for microfarad is "µF" (with
that first symbol being the Greek letter
"mu," short for "micro" or "one millionth").
Illustration
C
A
Illustration
C
C
E
B
T
E
Pictorial Representation
R5
3.3 kΩ
effect. You can tell how large a resistor is
by looking at the little colored rings
printed on the component.
The various resistors in your kit can be
distinguished as follows:
+ 470 Ω yellow-violet-brown
+ 3.3 kΩ orange-orange-red
+ 22 kΩ red-red-orange
+ 100 kΩ brown-black-yellow
+ 220 kΩ red-red-yellow
Pictorial Representation
C
+
B
C1
10 µF
E
In this kit, you will find a 10-µF capacitor
C
and a 100-µF one. The capacitance value is
printed directly on it. For your
B
T
experiments, you will be using so-called
E
electrolytic capacitors, which have a plus
and a minus mark.
Note: The electrolytic capacitors always
have to be installed the right way around,
exactly as shown in the circuit diagram.
5
Ta
EQUIPMENT
100 nF
Schematic Symbol
R
3.3 k
LED
A
C
A
C
Schematic Symbol
C
+
10 F
100 nF
R
3.3 k
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