heman chetia


{ City } jorhat
< Country > india
* Profession * dse
User No # 100959
Total Questions Posted # 0
Total Answers Posted # 2

Total Answers Posted for My Questions # 0
Total Views for My Questions # 0

Users Marked my Answers as Correct # 5
Users Marked my Answers as Wrong # 2
Questions / { heman chetia }
Questions Answers Category Views Company eMail




Answers / { heman chetia }

Question { MOL, 7983 }

If an Instrument has 550 ohm internal resistance and the
cable used for that instrument is 0.5 ohm per meter
resistance. If the voltage is 12volt.How much length cable
can be used? Please tell me its Calculation formula.


Answer

100 meters max.

Is This Answer Correct ?    2 Yes 1 No

Question { MOL, 7983 }

If an Instrument has 550 ohm internal resistance and the
cable used for that instrument is 0.5 ohm per meter
resistance. If the voltage is 12volt.How much length cable
can be used? Please tell me its Calculation formula.


Answer

Assume it is a 4-20 ma tx. 20ma*550= 11volts. minimum
supply is required. so allowable voltage drop is only 1
volt.
so max. 100meter u can use.

got the answer, don,t foget to say thanks.

Is This Answer Correct ?    3 Yes 1 No