JEE Main & Advanced Physics Current Electricity, Charging & Discharging Of Capacitors / वर्तमान बिजली, चार्ज और कैपेसिटर का निर Question Bank Assertion and Reason

  • question_answer
    Assertion             :       A potentiometer of longer length is used for accurate measurement. Reason                 :   The potential gradient for a potentiometer of longer length with a given source of e.m.f. becomes small.

    A)             If both assertion and reason are true and the reason is the correct explanation of the assertion.

    B)             If both assertion and reason are true but reason is not the correct explanation of the assertion.

    C)             If assertion is true but reason is false.

    D)             If the assertion and reason both are false.

    E)             If assertion is false but reason is true.

    Correct Answer: A

    Solution :

                Sensitivity \[\propto \frac{1}{\text{Potential gradient}}\propto (\text{Length of wire)}\]


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