Question

Two charges 1uc and 9uc are placed at 16 cm distance from each other then find out a position at which third charge is placed net force is zero?

Answer 1

The resultant electric field is zero at 24 cm.

Explanation:

Given that,

First point charge

Second point charge

Distance d = 8 cm

Let us consider the electric field will be zero at p.

The electric field at P by q₂

....(I)

The electric field at P by q₁

....(II)

The electric field will be zero

Hence, The resultant electric field is zero at 24 cm.

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