A) 20 cm
B) 10 cm
C) 33 cm
D) None of these
Correct Answer: C
Solution :
Suppose electric field is zero at N. Hence Which gives\[{{x}_{1}}=\frac{x}{\sqrt{\frac{{{Q}_{2}}}{{{Q}_{1}}}}+1}=\frac{80}{\sqrt{\frac{20}{10}+1}}=33cm\].You need to login to perform this action.
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