The motion of charged particles causes electrical effects, small shocks, lightning and sparks. Electrical fields cause forces to act on charged particles. How to affect electric current - OCR 21st ...

The questions in this quiz are suitable for GCSE physics students studying series and parallel circuits, resistor networks and energy and power in electric circuits. If you struggled with the quiz, ...

Many hackers learned about electronics over the years with home experimenter kits from Radio Shack and its ilk. Eschewing soldering for easier screw or spring based connections, they let the ...

Stuart Thompson has received funding from MAFF and the Nuffield Foundation. Plants power life on Earth. They are the original food source supplying energy to almost all living organisms and the basis ...

If the power source is a listed Class 2 transformer or listed Class 2 power supply — or it’s in listed equipment marked to identify the Class 2 power source — you’ve got a Class 2 circuit between the ...