a voltmeter shows 100v..wat is to be done to make it read 150v.

Answer Posted / tinku

if you want to make the deflection of voltmeter on 150 volt
on appling 100 V you can reduce the series resistance of
voltmeter it will cause more current to folw through it and
will show more (false) reading. But if you actually want to
increase its range to 150 volt i.e. it can measure upto 150
V you have to increase the series resistance

Is This Answer Correct ?    4 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What is the formula for calculating impedance of transformers connected parallel at fault level 50KA?

1596


What is different between resistance grounding system and resistance earthing system?

678


What is mean by spike arrester(Voltage Operated)

1607


explain comutator action in detail.thanks

1732


Difference between Lugs and Thimbles

13751






what is LSR?

1714


can mini-curcuit supply MIL-tested transformer !

1621


In CTs tan delta point should be earthed , what is the reason behind it?

2502


which is the best institute for PLC,SCADA,DCS in hyderabad

1887


What is resolver and glass scale in CNC how they work?

1747


why and how voltage sharing in transformer, during magnetic balance test ?

1804


by using pump duty, how we will can calculate the motor duty(KW)? is there any standard or formula.

1519


what is the safty of poly phase tranformer?

1640


can anybody send me syllabus of rrb section engg (electrical). and also send previous question pepar...

1566


what are the industrail measures to over ferranti effect? how would the ferranti effect the power system if those remedial mearsure arent taken? how often does this effect occurs in real power system?

1679