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Illustration of parallel circuit
Illustration of an alternator, anti-clockwise current
Illustration of an alternator, clockwise current
Illustration of Daniell cell, electrochemical cell consisting of copper and zinc plates immersed in
Illustration of cross-section through metal wire, electrons flowing from negative charge to positive charge
Illustration of how a solar-powered calculator works, photon giving energy to an electron in a silicon atom, electron then flies out and joins with others to make electric current
Illustration of electric current flowing through coil and producing magnetic field
Illustration of electric current producing magnetic field