Conrad Course material 10025 14 years and over 10025 Manual De Usuario

 
There are metal film resistors in the educational kit with the following values: 
 

 

 

 

 

 

 

10 Ω brown 

black 

black 

gold 

brown 

100 Ω  brown black  black black brown 
1 kΩ brown 

black 

black 

brown 

brown 

2.2 kΩ red  red  black 

brown 

brown 

 
Fig. 8: Schematic symbol: resistor 
 

 Electrolytic 

capacitors 

Electrolytic capacitors have a high capacity compared to normal capacitors. Due to the electrolyte, an 
electrolytic capacitor is polarity-dependent and the connections are designated with a positive pole 
and a negative pole. If the component is connected “the wrong way around” over a longer period, the 
electrolyte of the capacitor is thereby destroyed. Do not exceed the imprinted maximum voltage 
indication, because otherwise the insulation layer could be destroyed. 
 

µF means “microfarad”; the unit µ is one millionth of the basic unit. 

 
Fig. 9: Electrolytic capacitors with connections; the positive pole is the longer connection. In addition, 
the negative pole on the enclosure is designated by a bright stripe. 
 
Fig. 10: Schematic symbol: electrolytic capacitor 
 
For the sake of simplicity, the term “electrolytic capacitor” is sometimes shortened to “electrolytic.” This 
abbreviation is mainly used in the US. 
 

 Hook-up 

wire 

You can make jumpers with the hook-up wire that is included. To do this, you have to estimate or 
measure the approximate length of the jumper (plus the length for the wire ends that are to be inserted 
into the plug contacts). The ends are stripped of insulation for ca. 8 mm. Connection wires pinched off 
diagonally with the wire cutter make insertion in the patch panel contacts easier. Once the jumpers 
have been made, they can be used again and again. 
 

2. 

Step: Connection and functioning of the solar module 

You will learn about the characteristics and functions of a solar module through practical experiments 
in the following sections. You will learn how solar modules can be used and what to take into account 
in order to obtain optimal energy yields. 
 

 

Connecting the solar module at the patch panel 

Experimental set-up: solar module, patch panel, pin contact strip 
 
On the back of the module there are soldered connections with cables soldered on. The kind of current 
the module delivers is DC. Thus, as with a battery, there is a positive pole and a negative pole. 
Connect the black and the red cables to the patch panel. It is recommended that you insert the black 
connection into the lower bar and the red one into the upper bar, as shown in Fig. 11. The solar 
module can remain plugged in for almost all of the following experiments. 
 
Fig. 11: The connection lines of the solar module (flex ends) can also be directly inserted in the patch 
panel, but pins can stabilise the connection.  
 
Place the solar module so that a sufficiently bright source of light shines on it.  
 
There are various measurement methods for determining the power values around the solar modules:  

• Display 

with 

LEDs 

• 

Measurements with a consumer, e.g., a motor 

• 

Measurements with a multimeter (additionally required)