ExamCompetition Forum Question Papers Ask A Question Mock Test Learn & Earn Sign Up Login Menu



0 vote

A dynamometer wattmeter can be used for

Asked on by | Votes 0 | Views: 278 | Tags: measurements and instruments     | electrical engineering     | Add Bounty

A dynamometer wattmeter can be used for
1). Both D.C. and A.C. if scales are calibrated
2). D.C. only
3). A.C. only
4). Both AC and DC without any calibration of scale


Share on Facebook      Share on Whatsapp       Share on Twitter




1 answers

0 vote
Answered by on | Votes 0 |
  • Electrodynamics instruments are capable of service as transfer instruments.
  • The transfer instrument is first calibrated on D.C. This calibration is then transferred to the A.C instrument on alternating current.
  • Dynamometer wattmeter can be used for both D.C. and A.C.
  • Electrodynamometer types of instruments are used as A.C. voltmeters and ammeters both in the range of power frequencies and lower part of the audio power frequency range. They are used as wattmeters, voltmeters and with some modification as power factor meters and frequency meters.

Join Telegram Group




Answer This Question

Name:
Email:
Answer :
Sum of (4+4)
Submit: