Use app×
Join Bloom Tuition
One on One Online Tuition
JEE MAIN 2025 Foundation Course
NEET 2025 Foundation Course
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
0 votes
162 views
in Electronics by (114k points)
closed by
Which of the following instruments is used to measure both alternate current and as well as direct current power? 
1. Ohmmeter
2. Induction wattmeter 
3. Dynamometer wattmeter 
4. Megger

1 Answer

0 votes
by (113k points)
selected by
 
Best answer
Correct Answer - Option 3 : Dynamometer wattmeter 

Explanation:

Dynamometer wattmeter:

  • Electrodynamics instruments are capable of serving 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

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

Categories

...