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Please give the answer of b,c and d |
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Answer» r every 90 DEGREES the rotation would stop DUE to the gap in the SPLIT ring, but the momentum of the COIL keeps it moving for just a little longer until the coil experiences a force again and the coil moves for another 90 degrees. Then, without a split ring commutator, this same process will occur but in the opposite direction, and then motor will constantly go BACK and forwards 180 degrees. But a split ring commutator reverses the current, so that the current in the armature is unidirectionalc) The direction of magnetic field is from N-pole to S-polee) The electrical energy in the external circuit is converted into machenical engery which rotates the armature coil |
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