Investigating electrical behaviour and a filament lamp.
Aim: My aim in this investigation is to find electrical behaviour of a resistor and a filament lamp.
Apparatus: Below are the following equipment used throughout the experiment:
- Filament Lamp
- Power Supply
- 5 wires
Prediction: I predict that for the filament lamp as soon as the voltage increases, so will the resistance. This is because the filament gives out light, when the temperature of filament is increased. The filament lamp gives out heat because an electric current is passing through the components lamp. As the filament increases in temperature, the particles start to vibrate more. The vibration causes difficulty for the electrons to pass through.
I assume that the filament may need a certain amount of electricity / energy before it can give any heat or light out. The filament lamp needs to be at a certain temperature in order the lamp can give out any light or heat. If we were to draw a graph it would be curved. This is because the filament lamp gives out so much of light and heat. This one reason that graph of a filament lamp is curved. The other reason that graph is curved is because the steeper the gradient is the more lights the gives out. So at 12 volts I believe that it produce very strong light.