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Alternating current can not be measured ...

Alternating current can not be measured by D.C. Ammeter because

A

A.C. Cannot pass through D.C. Ammeter

B

average value of current for complete cycle is zero

C

A.C. Is virtual

D

A.C. Changes its direction

Text Solution

Verified by Experts

The correct Answer is:
B
Current varries in each moment in A.C and in each complete cycle average value of current is zero, so d.c ammeter will not measure the A.C
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DISHA PUBLICATION-ALTERNATING CURRENT -Exercise - 1 : CONCEPT BUILDER (TOPIC 1: Alternating Current, Voltage and Power)
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  7. Average voltage for the given source is :

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  8. The current I passed in any instruement in alternating current circuit...

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  13. Determine the rms value of a semi-circular current wave which has a ma...

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  14. The rms value of the function shown in figure if it its given that for...

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  15. Figure shows one cycle of an alternating current with the segments AB,...

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  16. A resistance of 20 ohm is connected to a source of an alternating pote...

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  17. The rms value of the emf given by E = 8 sin omegat + 6 sin 2omegat .

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  18. An AC voltage source has an output of V = 200 sin 2 pi ft. This source...

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  19. The r.m.s value of an a.c of 59 Hz is 10 A. The time taken by the alte...

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