Question: A shading coil A . applies additional pressure to the contact for better electrical conductivity. B . applies a wiping movement each time the relay

A shading coil
A. applies additional pressure to the contact for better electrical conductivity.
B. applies a wiping movement each time the relay operates.
Q. decreases the ac hum or chatter.
D. decreases the residual magnetlsm when the relay operates on dc.
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A shading coil A . applies additional pressure to

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