Answer Posted / ravi kant saxena

From safety point of view RMS value of 110 V is 192.52 V &
RMS value of 220 Volts will be 381.04 Volts which if double
of the RMS value of 110 V.
ADV. of 110 V over 220 V Operations are easy.
Safe to use compare to 220 V.

Dis Adv. for same Conductor cost is 1.5 times more.
Transmisson losses.

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