in a electronic controller why we are using 250 ohm
resistance in input signal?is i/p is necessary in control
valve when we are using electronic controller give details?
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Answer Posted / rohit
A electronics controller needs 4-20mA current and we have
230v or more voltage in industry so to maintain flow of
current 250 ohm resistance is vital.
I=V/R
| Is This Answer Correct ? | 2 Yes | 16 No |
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