Answer / anoop pandey ji

HV voltages are in multiple of 11 only because they are
stepped-up by transformers having fixed voltage ratios.
these ratios cant be in decimals and are only in whole
numbers.
hence are in multiples in 11.

WHAT IS SEMICONDUCTOR? EXPLAIN DETAIL. FOR EXAMPLE TAKE A PENCIL.THE LEAD IS MADE UP OF GRAPHITE IT IS A CONDUCTOR.THE OUTER COVER IS MADE UP OF WOOD IT IS INSULATOR.PENCIL IS A SEMICODUCTOR MATERIAL.

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