Question

In: Physics

Two point charges lie on the x axis. A charge of + 2.60 pC is at...

Two point charges lie on the x axis. A charge of + 2.60 pC is at the origin, and a charge of − 4.60 pC is at x=−10.0cm. What third charge should be placed at x=+26cm so that the total electric field at x=+13.0cm is zero?

Solutions

Expert Solution

Electric field direction is radially outwards for positive charge and radially inwards for a negative charge.

First, consider charges q₁ and q₂

Let's find resultant electric field of those two charges to determine the sign of the third charge q₃

The resultant electric field of is not zero and pointing towards the right.

To get the net electric field at x=13cm zero, the electric field from q₃ must point towards left.

So q₃ is positive

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Net electric field at x=13cm,

ANSWER:

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genius_generous answered 1 month ago

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