Answer Posted / rajesh

As per Numerology 4 is the good number for all analog instruments. next number of 4 is 5. multiply both of them
(4 x 5 = 20).

So only 4 to 20 MA is used in all Analog Signals.

Note: Sorry Friends, i just check whether this website accept all answers or filter.

Don't accept these answers even more no of YES. Because everyone will answer this website without knowing the answer.

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