Answer / nirmalya basu

Generally ammeter has internal resistance lower than the
load resistance so if we connect the ammeter in series with
load so maximum current flows through the ammeter so we can
get current value.
on the other hand voltmeter's internal resistance is very
much higher than load resistance, so if we connect
voltmeter in parallel with load then a minimum but constant
current can flow through the voltmeter by calculating the
voltage we can calculate the actual drop.

How to Calibrate Level Troll in field

0 Answers  

---

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?

3 Answers   IOCL,

---

what is orfics working in main steam line. is it increase pressure, velocity of steam flow and dicrease steam flow rate. or any other

0 Answers  

---

hello this is dhinakar subramanian. how to piping and instrumenation drawings and also how to create the data sheets...

1 Answers  

---

I want to measure level under vaccum by using DP Tx and vaccum vary between -500 to -670 mmHg and process fluid is accetic anhydride if consider process fluid density 1 kg/cm2. how to calibrate Tx ? consider level is 0 to 100 Cm.

1 Answers   CCC,

---

why relays are used with plc?

4 Answers  

---

Emergency Shutdown Systems/ Plant Shutdown System.

0 Answers   CCIE,

---

PID controller is used for which type of compensation…… a) lead comp. b) lag com. c) lead lag com.

12 Answers   Engineers India Limited,

---

Will Intergraph support SmartPlant Instrumentation in an AutoCAD or MicroStation environment on a long-term basis?

1 Answers   Siemens,

---

What is the difference between conductive lined pipe and conductive unlined pipe? Why do we see that?

0 Answers   Process Control Technologies,

---

can we connect instrument earth pit to electrical earth pit, if not why?

2 Answers  

---

How addressable fire systems work? Pl. send details with architect.(Loop), also send details regarding Gas system. Pl. help me.Thanks

0 Answers   Siemens,

---