Description

This kit provides a comprehensive range of practical assignments for
electricity and magnetism and is ideal for those who are studying
science and electricity for science students. The kit is supplied with
a comprehensive set of worksheets that cover the electrical and
electronic principles. Suitable for students of Physics aged 16 to 18.
Contents include: Plastic trays & lids; 1 Power supply ; 1 Small bar
magnet ; 3 MES bulb, 6V, 0.04A; 1 Capacitor, 22,000uF, Electrolytic
16V; 1 Locktronics User Guide; 1 Resistor, 100 ohm, 1W, 5% (DIN); 1
Capacitor, 1,000 uF, Electrolytic 30V; 1 Resistor, 10 ohm, 1W 5% (DIN);
1 Resistor, 47 ohm, 1/2W, 5% (DIN); 1 Transformer, 2:1 turns ratio; 1
Light dependent resistor; 1Resistor, 1k, 1/4W, 5% (DIN); 1 Resistor, 10k,
1/4W, 5% (DIN); 1 Resistor, 270 ohm, 1/2W, 5% (DIN); 1 Potentiometer,
250 ohm (DIN); 1 Resistor, 5.6k, 1/4W, 5% (DIN); 1 Resistor, 3.9 ohm,
3W, 5% (DIN); 1 Resistor, 68 ohm 1/2W, 5% (DIN); 12 Connecting Links;
3 Lamp holders, MES; 1 x 400 turn induction coil; 1 Thermistor, 4.7k,
NTC (DIN); 1Capacitor, 2,200 uF, Electrolytic, 25V; 1 Capacitor, 1 uF,
Polyester; 1 Switch, on/off, metal strip; 1 Resistor, 22k, 1/4W, 5% (DIN);
1 Choke, 47mH; 1 Resistor, 2.2k, 1/4W, 5% (DIN); 1 LED, red, 12V (SB); 1
Curriculum CD ROM; 3 AA battery holder carrier; 1 x 1:1 transformer
with retractable ferrite core; 1 Nichrome Wire Carrier, 0.075 x 500mm;
1 Nichrome Wire Carrier, 0.075 x 250mm; 1 Nichrome Wire Carrier, 0.21
x 500mm; 1 Constantan Wire Carrier, 0.075 x 500mm; 1 Power supply
carrier with battery symbol; 7 x 5 metric baseboard with 4mm pillars.
EXAMPLE OF USE

THE THERMISTOR

Temperature dependent resistor
They have great resistance at
low temperatures but when
they warm up their resistance
decreases rapidly. Current
can then flow through them.
This makes them ideal as
one of the components for a
temperature sensor.
Build the simple thermistor
circuit from the kit. When the
thermistor is cool or cold the
LED should not light because
of the high resistance.
However, warm up the
thermistor by blowing
warm air from a hair drier
across it. This should warm
it sufficiently that in a few
seconds the resistance will
drop and the LED will light.