NEET Sample Paper NEET Sample Test Paper-1

  • question_answer 8) Parallel plate condenser with oil between the plates (dielectric constant of oil \[K=2\]) has a capacitance C. if the oil is removed then capacitance of the capacitor becomes:

    A)  \[\frac{C}{2}\]                 

    B)  \[\frac{C}{\sqrt{2}}\]

    C)  \[2C\]                         

    D)  \[\sqrt{2}C\]

    Correct Answer: A

    Solution :

    Dielectric constant of oil \[k=2.\] Capacitance of the capacitor with oil, \[{{C}_{m}}=C\] The capacitance of the conductor with oil              \[{{C}_{m}}=K{{C}_{o}}\] \[\Rightarrow \]               \[C=2\times {{C}_{o}}\] (Where \[{{C}_{o}}\] is the capacitance of the capacitor after oil is removed)         

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