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Electric Charges and Fields
Question
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Two point electric charges of unknown magnitude and sign are placed a 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.

Answer

Two essential conditions for this to happen is:
i) Both charges cannot be of the same sign.
ii)The point where electric field intensity has to be 0 is closer to the smaller charge as compared to the charge larger in magitude.

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Some More Questions From Electric Charges and Fields Chapter

Figure shows tracks of three charged particles in a uniform electrostatic field. Give the signs of the three charges. Which particle has the highest charge to mass ratio?