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Physics

12th

grade

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Electric Charges and Fields

user
C P SINGH

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10 questions

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  • 1. Multiple Choice
    1 minute
    1 pt

    1. Two charges 3x 10−510^{-5}  C and 5x 10410^4   C are placed at a distance 10 cm from each other. Find the value of electrostatic force acting between them.

     13.5×101113.5\times10^{11} N 

     40 × 101140\ \times\ 10^{11^{ }}  

     180×109180\times10^9  

     13.5×101013.5\times10^{10}  

  • 2. Multiple Choice
    1 minute
    1 pt

    What is the S. I. unit of electric flux?

    NCm2\frac{N}{C}m^2

    Nm2C2\frac{N}{m^2}C^2

    N m2N\ m^2

    Nm2C\frac{N}{m^2}C^{ }

  • 3. Multiple Choice
    30 seconds
    1 pt

    What is the value of minimum force acting between two charges placed at 1 m apart from each other

    K eK\ e

    K e2K\ e^2

    Ke4\frac{Ke}{4}

    Ke29\frac{Ke^2}{9}

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