2. Questions Bank
  3. 12th Class
  4. Physics
  5. Current Electricity, Charging & Discharging Of Capacitors / वर्तमान बिजली, चार्ज और कैपेसिटर का निर

12th Class Physics Current Electricity, Charging & Discharging Of Capacitors / वर्तमान बिजली, चार्ज और कैपेसिटर का निर Question Bank MCQs - Current Electricity

  • question_answer
    The current density (number of free electrons per \[{{\operatorname{m}}^{3}}\]) in metallic conductor is of the order of

    A) \[{{10}^{28}}\]

    B) \[{{10}^{23}}\]

    C) \[{{10}^{20}}\]

    D) \[{{10}^{15}}\]

    Correct Answer: A

    Solution :

    Option is correct Explanation: The current density (number of free electrons per \[{{\operatorname{m}}^{3}}\]) in metallic conductor is of the order of \[{{10}^{28}}\]


You need to login to perform this action.
You will be redirected in 3 sec spinner