The speed control of universal motor used for sewing machines is by Options: A . &nbspfriction B . &nbspvarying the resistance C . &nbsptapping the field D . &nbspcentrifugal mechanism

The speed control of universal motor used for sewing machines is by

Question

The speed control of universal motor used for sewing machines is by

Options:

A . friction

B . varying the resistance

C . tapping the field

D . centrifugal mechanism

Answer: Option B

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