Ec-1 Wind Your Own Transformer
Published: Tuesday 14 March 2006 - Updated: Tuesday 29 March 2011
Aim
To illustrate the principle of a transformer.
Apparatus
- Variac
- Specially built transformer
- 6 V globe
- Wrap around wire
Diagrams
Click on pictures to enlarge.
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Transformer Diagram |
Description
a) Principle of Physics illustrated
Faraday's Law of Induction etc.
b) Procedure
The primary coil is energised with 100V a.c. from the portable variac. A long length of thin wire connected to a 6V bulb is slowly wound around that part of the core which projects from the primary coil. The lamp initially unlit steadily increases in brightness as more turns are added.