LIVE Course for free

Rated by 1 million+ students
Get app now
JEE MAIN 2023
JEE MAIN 2023 TEST SERIES
NEET 2023 TEST SERIES
NEET 2023
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
0 votes
74 views
in Electronics by (59.9k points)
closed by
One of the following instruments is used to measure AC current only. Identify that instrument.
1. Megger
2. Multiplexer
3. Permanent Magnet Type ammeter
4. Induction type ammeter

1 Answer

0 votes
by (110k points)
selected by
 
Best answer
Correct Answer - Option 4 : Induction type ammeter
  • The operation of induction type instruments depends on the production of torque due to reaction between two magnetic fluxes having some phase difference or reaction between the flux of an AC magnet and the eddy current induced by this flux.
  • Hence, These types of instruments are used only for AC measurements.

 

Type of Measuring Instrument:

Type Effect Suitable for Work as
Moving Iron Magnetic Effect DC, AC Ammeter,
Voltmeter
PMMC
(Permanent Magnet
Moving Coil)
Electro-dynamic
Effect
DC Ammeter,
Voltmeter
EMMC
(Dynamometer)
Electro-dynamic
Effect
DC, AC Ammeter,
Voltmeter,
Wattmeter
Induction Type Electro-Magnetic
Induction
AC Ammeter,
Voltmeter,
Wattmeter,
Energy Meter
Hot Wire Thermal
Effect
DC, AC Ammeter,
Voltmeter
Electrolyte
Meter
Chemical
Effect
DC Amp-Hr Meter
Electrostatics
Meter
Electrostatics
Effect
DC, AC Voltmeter

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

...