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Railways Sample Paper RRBs Assistant Loco Pilot and Technician CBT STAGE-I Sample Paper-20

  • question_answer
    A capacitor when connected across a 12 V battery, collects 24 micro-coulomb of charge with air as dielectric and 60 micro-coulomb of charge when air is replaced by an oil. The relative permittivity (or dielectric constant) of the oil is

    A)  0.4                  

    B)  1.0

    C)  2.5      

    D)  4.0

    Correct Answer: C

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