Name the principles behind the following a) Dynamo b) Motor
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dynamo...electromagnetic induction
motor...uses attraction and repulsion of magnetic field
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A dynamo is a device that converts mechanical energy into electrical energy. Figure 5 shows the structure of a simple dynamo. A coil made of conducting wire is positioned between the North and South poles of two permanent magnets. When the coil is stationary, no voltage is induced
Working principle of a DC motor. An electric motor is an electrical machine which converts electrical energy into mechanical energy. The basic working principle of a DC motor is: "whenever a current carrying conductor is placed in a magnetic field, it experiences a mechanical force".
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