Why an armature of an electric motor rotate ?

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Solution

The motor's magnet exerts a force (up on one side, down on the other) on the armature, which causes the armature to rotate. Thus the armature experiences a torque due to interaction of its magnetic moment and motor's magnet.

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Similar questions

The commercial electric motors uses ____magnet to rotate the armature.

Question 6
Commercial electric motors do not use

(a) an electromagnet to rotate the armature
(b) effectively large number of turns of conducting wire in the current carrying coil
(c) a permanent magnet to rotate the armature
(d) a soft iron core on which the coil is wound

Q. (a) State Fleming's left hand rule.
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(c) Explain the function of following parts of an electric motor :
(i) Armature (ii) Brushes (iii) Split ring.

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D C

source of emf

200 V

and draws a current of

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. If the efficiency be

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%, then the resistance of armature is

Q. The armature in a motor rotates due to the presence of a _______ field.

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