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Why 4-20mA SIGNAL IS PREFERRED OVEA A 0-10v signal?
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Answer Posted / vijay kumar
Generally in a transistor some amount of voltage is
required for turning it on. This voltage is the cut in
voltage. Up to this voltage the exists a nonlinearity in
its characteristics. Beyond this cut in voltage the char.
of transistor is linear. This nonlinear region lays between
0-4ma, beyond 4ma it linear. This is why 4-20 ma range is
used.
| Is This Answer Correct ? | 4 Yes | 18 No |
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