The students generally have some
knowledge on what a capacitor is, and from this, and in association
with the symbol, probably think of them as a pair of plates. Even
though the capacitors used in this experiment do not correspond to
this picture they have, they will still not expect a current to
flow when a capacitor is connected in a direct current circuit. The
result of the experiment will therefore surprise them and awake
even more of their interest!
Investigate the effect of fitting a capacitor into a direct
current circuit. Pay particular attention to what happens when
switching on and switching off.
| Materiallist (Excerpt) |
Product |
Amount |
|
Power supply 0...12 V DC/ 6 V, 12 V AC, 230 V
|
13505-93
|
1
|
|
Multi-range meter, analogue
|
07028-01
|
1
|
|
On-off switch module, SB
|
05602-01
|
1
|
|
Change-over switch module, SB
|
05602-02
|
1
|
|
Socket module for incandescent lamp E10, SB
|
05604-00
|
1
|
|
Interrupted connector module, SB
|
05601-04
|
2
|
|
Capacitor module 47 µF non-polar electrolytic, SB
|
05645-47
|
1
|
|
Capacitor module 470 µF non-polar electrolytic, SB
|
05646-47
|
1
|
|
Straight connector module, SB
|
05601-01
|
4
|
|
Angled connector module, SB
|
05601-02
|
4
|
|
T-shaped connector module, SB
|
05601-03
|
1
|
|
Filament lamps 4V/0.04A, E10, 10
|
06154-03
|
1
|
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