3B Scientific Advanced Electricity and Magnetism Kit User Manual
SEK Electricity U8506000
Elwe Didactic GmbH • Steinfelsstr. 6 • 08248 Klingenthal • Germany • www.elwedidactic.com
3B Scientific GmbH • Rudorffweg 8 • 21031 Hamburg • Germany • www.3bscientific.com
Subject to technical amendments
© Copyright 2010 3B Scientific GmbH
Contents
1 1 Switch (plug-in component)
2 1 Potentiometer (plug-in component)
3 1 Set of resistors, 33 :, 47 :, 1 k: (plug-in
components)
4 1 Horseshoe magnet and 1 bar magnet
5 1 NTC-resistor (plug-in component)
6 1 Electrolytic capacitor (plug-in component)
7 1 Capacitor (plug-in component)
8 2 Current branches (plug-in components)
9 2 Lamp sockets, E10 (plug-in components),
and 2 light bulbs
10 2 Coils
11 50 g of iron filings
12 1 Storage box with 1 set of threads with
washer, 2 threaded bushes, 2 threaded pins,
2 paper clips, 2 aluminium electrodes, con-
stantan wire
13 50 m of iron wire
14 50 m of chrome/nickel wire
15 1 Tea candle
16 1 Transformer core
17 1 Resistor board
18 1 Set of experiment leads
SEK Electricity/Electric Current
Work sheet
1
E105 Electric current in circuits with no branches
Exercise
x Investigate current at various points in an electric circuit with no branches.
Equipment
From SEK Electricity and Magnetism (U8506000)
1 Resistor, 33 :
1 Resistor, 47 :
1 Switch
Experiment leads
Additionally required
1 SEK base plate (U8408035)
1 SEK power supply (U8498030)
1 ESCOLA 2 multimeter (U8531171)
Set-up and procedure
1) Assemble a circuit as shown in Fig. 1a.
2) Set the rotary switch on the power supply to 6
V.
3) Set the ammeter to 3000 mA.
4) Have the circuit checked before you turn it on.
5) Turn on the power supply.
6) Close the switch and switch the ammeter back
step by step to the best measuring range I
1
. En-
ter your measurement into the table.
7) Measure the current values I2 and I3 by inserting
the ammeter at different points of the circuit,
according to the sketches in Fig. 1b and Fig. 1c.
Enter those values into the table.
8) Set the rotary switch of the power supply to 3 V
and repeat the whole experiment, entering the
results into the table.
9) Once the experiment is complete, turn the
power supply off.
a)
+
–
6 V
R
1
R
2
A
I
1
0 1
AC
DC
+
-
1,5 V
3 V
4,5 V
6 V
3000
3000
1000
100
10
1
mA =mA ~
V ~ V =
10
3
1
0,3
10
3
1
0,3
1000
100
10
1
+
–
6 V
A
I
2
R
1
R
2
0 1
AC
DC
+
-
1,5 V
3 V
4,5 V
6 V
b)
30003000
1000
100
10
1
mA =mA ~
V ~ V =
10
3
1
0,3
10
3
1
0,3
1000
100
10
1
+
–
6 V
A
I
3
R
1
R
2
0 1
AC
DC
+
-
1,5 V
3 V
4,5 V
6 V
c)
30003000
1000
100
10
1
mA =mA ~
V ~ V =
10
3
1
0,3
10
3
1
0,3
1000
100
10
1
3030
30 30
3030
Fig. 1
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