Eb-7 Light Globe Under Water
Published: Tuesday 14 March 2006 - Updated: Tuesday 29 March 2011
Aim
To demonstrate induced emf.
Apparatus
- Cenco electromagnet
- Variac
- Waxed coil with globe
- Beaker of water
Diagrams
Click on pictures to enlarge.
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Light Globe Under Water |
Light Globe Underwater Diagram |
Videos
Light Globe Under Water |
Description
The apparatus consists of a waxed coil connected to a 6 Volt torch globe. The coil may be submerged in a beaker of water and placed upon the protruding core of the electromagnet.
The variac voltage is increased and the globe lights. Do not apply more than 115 volts A.C.