Eb-7 Light Globe Under Water


To demonstrate induced EMF.


  • Cenco electromagnet
  • Variac
  • Waxed coil with globe
  • Beaker of water

Light Globe Underwater

Light Globe Underwater.


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.


Safety Notes

Light Globe Underwater SOP-25