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Two point electric charges of unknown …

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Two point electric charges of unknown magnitude and sign are placed at some distance d apart.The electric field intensity is zero at a point,not between the charges but on the line joining them.Write two essential conditions for this to happen.

    • Posted by Shikha Doda 8 years, 4 months ago

    CBSE > Class 12 > Physics
    • 2 answers

    Payal Singh 8 years, 4 months ago

    Ans. 

    1. Both the charges can not be of same sign.
    2. The observation point (where electric field intensity is zero) has to be closer to the smaller charge than to the bigger charge.

    1Thank You

    Naveen Sharma 8 years, 4 months ago

    Ans. Two essential Conditions are :

    1. The two point electric charge must have opposite signs. ( this is because if the two charges would have the same sign, the null point would lie b/w the two charges.
    2. The null point is closer to the charge of smaller magnitude.

    1Thank You

    ANSWER
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