Name: Energy Losses in a Transformer
Uploaded: 2019-07-19
Duration: 8 min 12 s
Description: There are different types of energy losses in a transformer. This video explains those losses in detail and also talks about the efficiency of ideal and prac...

Question

Draw a neat labelled diagram of a d.c. motor.

Accepted Answer

The electric motor consists of a rectangular loop of copper wire having a resistive coating. As shown in the figure, it is placed between the north pole and south pole of a magnet (such as a horseshoe magnet) in such a way that its branches AB and CD are perpendicular to the direction of the magnetic field. The two ends of the loop are connected to the two halves (X and Y) of the split ring. The two halves of the ring have a resistive coating on their inner surfaces and are tightly fitted on the axle. The two halves of the split ring, X and Y, have their outer conducting surfaces in contact with the two stationary carbon brushes, (E and F), respectively.

Draw a neat labelled diagram of a d.c. motor.

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