![](http://www.alamy.com/thumbs/6/C67CFF33-5831-4E81-9738-05172B56E6E2/A4BNFE.jpg)
A primary school teacher explaining the priciples of electricity to his class.
A primary school teacher explaining the priciples of electricity to his class.
Size: 5208px × 3443px
Location: United Kingdom
Photo credit: © Mike Goldwater / Alamy / Afripics
License: Licensed
Model Released: No
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