12th Class Physics Electric Charges and Fields Question Bank MCQ - Electric Charges and Fields

  • question_answer
    The number of electric line of forces that radiated outward from 2 C of charge in vacuum is:

    A) \[1.13\times {{10}^{11}}\]                   

    B) \[1.13\times {{10}^{13}}\]

    C) \[2.26\times {{10}^{11}}\]                   

    D) \[2.26\times {{10}^{13}}\]

    Correct Answer: C

    Solution :

    (c) \[2.26\times {{10}^{11}}\] Number of electric lines \[\phi =\frac{q}{\varepsilon {{ & }_{0}}}\] \[=\frac{2}{8.854\times {{10}^{-12}}}=0.226\times {{10}^{12}}\] \[=2.26\times {{10}^{11}}\]


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