A total charge Q is distributed uniformly over a large flat insulating surface of area A . If the electric field magnitude is equal to 1000

Question

A total charge Q is distributed uniformly over a large flat insulating surface of area A . If the electric field magnitude is equal to 1000 NC/ at a point located a perpendicular distance of 0.1 m away from the center of the sheet, then the electric field at a point a perpendicular distance 0.2 m from the center of the sheet is:_______

a. 1000N/C
b. 500N/C
c. Impossible to say since we are not given Q and A
d. 250 N/C

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Diễm Kiều 3 years 2021-08-27T04:21:50+00:00 1 Answers 32 views 0

Answers ( )

  1. mocmien2
    0
    2021-08-27T04:23:14+00:00
    Reply

    Answer:

    a. 1000N/C

    Explanation:

    Data mentioned in the question

    Electrical field magnitude = 1000 NC

    Perpendicular distance = 0.1 m

    Perpendicular distance = 0.2 m

    Based on the above information, the electric field is

    As we know that

    E = \frac{\sigma}{2\times E_o}

    where,

    \sigma = surface charge density

    E = distance from nearby point to sheet i.e be independent

    The distance at 0.1 and 0.2, the electric field would remain the same

    So,

    Based on the above explanation, the first option is correct

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