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## Homework Statement

Two point charges of unknown magnitude and sign are places at some distance apart. The electric field is zero at a point not between them , but on the line joining the. Write 2 essential conditions for this to happen.

## Homework Equations

E = q1*q2/(4 * pi * epsilon

_{0}* r

^{2})

## The Attempt at a Solution

Since the net field is zero at a point outside the line joining the 2 charges ,

they should be oppositely charged.

So, condition one:

The charges should be oppositely charged .

What would be the second condition?

Any help would be highly appreciated.

Thank You.

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