Home
Class 12
PHYSICS
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
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • ALTERNATING CURRENT

    DISHA PUBLICATION|Exercise Exercise - 1 : CONCEPT BUILDER (Topic 2: A.C Circuits and Power Factor)|31 Videos

  • ALTERNATING CURRENT

    DISHA PUBLICATION|Exercise Exercise - 1 : CONCEPT BUILDER (Topic 3 : Transformers and LC Oscillations)|19 Videos

  • ALTERNATING CURRENT

    DISHA PUBLICATION|Exercise Exercise -2 : Concept Applicator|30 Videos

  • ATOMS

    DISHA PUBLICATION|Exercise EXERCISE-2: CONCEPT APPLICATOR|30 Videos

Similar Questions

Explore conceptually related problems

Alternating currents can be produced by a

Alternating current can be produced by

Knowledge Check

  • Alternating current cannot be measured by a d.c. ammeter because

    A
    a.c. cannot pass through d.c. ammeter.
    B
    a.c. changes its direction.
    C
    average value of a.c. for complete cycle is zero.
    D
    a.c. is virtual

  • Alternating current can be measured by

    A
    moving coil galvanometer
    B
    hot wire ammeter
    C
    tangent galvanometer
    D
    none of the above

  • Alternating current can be measured by

    A
    moving coil galvanometer
    B
    hot wire ammeter
    C
    tangent galvanometer
    D
    none of these

    • Similar Questions

    Explore conceptually related problems

    Alternating current can be measured with the help of

    What is measured by Ammeter?

    In a circuit, the value of the alternating current is measured by hot wire ammeter as 10 ammeter. Its peak value will be

    A galvanometer of resistance 50Omega is converted into an ammeter by connecting a low resistance (shunt) of value 1Omega in parallel to the galvanometer, S. If full - scale deflection current of the galvanometer is 10 mA, then the maximum current that can be measured by the ammeter is -

    An ammeter consists of a galvanometer of a resistance 45 Omega shunted with a resistance of 3 Omega . If the current rating of that can be measured by the ammeter will be

    Home
    Profile