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A cube is placed inside an electric field,  The side of the cube is 0.5m and is placed in the field as shown in the given figure. The change inside the cube is:

 

Option 1 -

8.3 * 10-11C

Option 2 -

8.3 * 10-12C

Option 3 -

3.8 * 10-12C

Option 4 -

3.8 * 10-11C

0 7 Views | Posted 2 months ago
Asked by Shiksha User

  • 1 Answer

  • A

    Answered by

    alok kumar singh | Contributor-Level 10

    2 months ago
    Correct Option - 1


    Detailed Solution:

    Direction of E in the direction of y axes so flux is only due to top and bottom surface for bottom surface y = 0 E = 0

    and for top surface y = 0.5 m      So

    E = 1 5 0 × ( 0 . 5 ) 2 = 1 5 0 4

    f l u x     f l o w i n g     ? = E A = 1 5 0 4 × ( 0 . 5 ) 2              

    = 1 5 0 1 6             

    Gausses law ? =qε0  

      1 5 0 1 6 = q ε 0            

    = 8 . 3 × 1 0 − 1 1 C              

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