Answer Posted / sai kiran.c
very goood my dear frnd ....actualy wat u said is
rite...itzz a usualy universal standard.
BUT ALSO ONE REASON STARTING FROM 4ma IS THAT THE DEVICE
WILL WRK IN OPTIMUM RESPONSE FRM THAT RANGE.
& MOSTLY AND ALSO IT NEVR STARTS FRM ZERO BCOZ IT DOESNT
MEAN THE DEVICE IS IN REST POSITION OR NOT.
WE CANT JUDGE THE DEVICE IS IN ON OR OFF.
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