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Chapter 3 Ammeters and Voltmeters MCQs

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1. Internal resistance of an ampere meter is





2. Ampere meter is connected





3. If an ampere meter is connected in parallel of the circuit.





4. Internal resistance of a volt meter is





5. If a voltmeter is connected in parallel of the circuit (its range is suitable for supply voltage).





6. If a voltmeter is connected in series of the load





7. Ampere turns of the coils of a moving iron voltmeter and moving coil ampere meter





8. Coil of moving iron voltmeter is made with





9. In permanent magnet moving coil instruments





10. Coil former of PMMC instruments is made in





11. Permanent magnet moving coil instruments are used on





12. Diameter of wire of coil in a Permanent magnet moving coil instruments use is





13. Purpose of cylindrical core in the Permanent magnet moving coil instruments is





14. This is used in Permanent magnet moving coil instruments.





15. This is used in Permanent magnet moving coil instruments.





16. The scale of Permanent magnet moving coil instruments is





17. The damping method used in permanent magnet moving coil instruments is





18. Permanent magnet moving coil instruments have





19. Permanent magnet moving coil instruments use power





20. The over load capacity of permanent magnet moving coil instruments is





21. The length of scale of permanent magnet moving coil instruments is





22. This error does not occur in permanent magnet moving coil instruments.





23. Dynamometer type instruments are basically





24. Dynamometer type instruments are used on





25. Scale of dynamometer type instruments have





26. Cores of fixed and moving coils of dynamometer type instruments are made air core to





27. The number of moving coils used in dynamometer type instruments





28. Are called “transfer” instruments because





29. These instruments give true reading even on the non sinusoidal wave form of AC supply





30. Dynamometer type instruments usually have





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