Category Archives: How do electric circuits work?

Photonicinduction – 10 second kettle

Photonicinduction and Polar again take control of the power supply but this time test an Electric Kettle to it’s limits and beyond, the speed and power is surprising.

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Tea Time Britain

http://www.bbc.co.uk/britainfromabove/stories/people/teatimebritain.shtml Power surges called the TV pickup are unique to Britain. The engineers at the National Grid control centre brace themselves each time Eastenders ends and 1.75 million kettles get switched on.

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The Pain of Electricity (AC versus DC)

Don’t try this at home.  

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Resistors quiz

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Electricity definitions quiz

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Electric circuits quiz

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Electric power quiz

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Are Expensive Batteries Worth the Extra Cost?

A very thorough analysis of the power vs cost relationship for common batteries. http://www.wired.com/2012/01/are-expensive-batteries-worth-the-extra-cost/

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BBC Discovery Power Transmission

As power generation becomes increasingly mixed and demand increases, what does the grid of the future look like? http://www.bbc.co.uk/programmes/p0268cd5

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Circuit calculations

(View in full window) This object shows the relationship between current & voltage when changing resistance The differences in current and voltage relationships can be seen. Drag the red sliders to change the resistance between 1 & 100Ω and change … Continue reading

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