Can two equipotential surfaces intersect ?

Scientific Reasoning : Can two equipotential surfaces intersect ?

Ans : No , two equipotential surfaces can never intersect because if they intersect at a point , the electric field at a point can have two directions simultaneously , which is impossible .

Q . Ordinary rubber is an insulator . But the special rubber tyres of aircraft are made conducting . why is this necessary ?

Ans : To conduct away electricity produced by friction .

Author: Rajesh Jha for CBSE|IIT-JEE|NEET

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