why star are twnkiling?" 2) what is commutator
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Stars do not really twinkle, they just appear to twinkle when seen from the surface of Earth, due to the refraction of light
A commutator is a rotary electrical switch in electric motors and electrical generators that periodically reverses the current direction between the rotor and the external circuit.
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shrutikushwaha96:
This answer is in short if you want to know in detail I can tell you
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