Answer Posted / himanshu singh
AC stands for alternating current.It has frequency in it.It
flows in single,dual or 3 phase as per requirement.Thus it
has phase and neutral i.e return...also it has pulses and
follows sine graph.
Where as DC stands for Direct Current.It has zero frequency
and has one positive and one negative.Infact Dc is much
powerful than AC.
| Is This Answer Correct ? | 8 Yes | 1 No |
Post New Answer View All Answers
Displace type LT to be calibrated in workshop, wt. 40, dia- 60 mm, density- 0.8kg/cm3.
How many ohms are required for proper earthing?
any body who gone thru recent iocl interview.INSTRUMENTATION questions. I need.
Why 4-20 amps is being used in instruments? Why cant we use any other range instead of 4-20 amps? Why only 4 amps is taken as lower limit and why 20 amps is taken as the higher limit?
Hi Friends i am going to write BARC written test by this month 20th (20-5-2008). So please if any body knows the details about this or having previous question papers pls mail me to kkumarei@gmail.com. For Suggestions give one message to 9962122264
What is 3 selection available when configure the burnout protection for controller
How it the difference between force balance system and dispalacement balance system?
How to regulate the flow of Air in 4" line, with max flow of 330 nm3/hr and Pressure of 0.5 bar? please suggest the type of instrument required.
what is the usage of QDV & VOLUME BOOSTER
I need to know steps to Calibration Valve Guard......
Explain the working of an electronic level troll.
What is wet leg condition and why is it used?
what is a vortex flow meter,mass flow meter and electromagnetic flow meter.particular use of this.means in which condition particular meter is used.
Why mmwc unit is used?
what is interlock system and why we use of this?