a) Redraw the above diagram. b) This diagram represents ............... c) Label the parts of the diagram d) Mention the working principle of the device denoted by this diagram.
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a) and c) A well labelled figure has been drawn.
b) The diagram represents an AC Electric Generator which produces electric current by converting mechanical energy into electrical energy.
d) The electric generator is based on the principle of electromagnetic induction. When a closed coil is rotated in a uniform magnetic feld with its axis perpendicular to the magnetic field, the magnetic field lines passing through the coil change and an induced EMF and a current is set in the coil.