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Two point charges a and b whose magnitud...

Two point charges a and b whose magnitude are same, positioned at a certain distance along the positive x-axis from each other a is at origin. Graph is drawn between electrical field strength and distance x from a. E is taken positive if it is along the line joining from a to b From the graph it can be decided that

A

a is positive b is negative

B

a and b both are positive

C

a and b both are negative

D

a is negative, b is positive

Text Solution

Verified by Experts

The correct Answer is:
A

Just to the right of a, electic field is along ab
`:.` positive and tending to infinite, Similarly, electric field just to the left of b electric field is again long `ab`(`:.` positive) and tending to infinite
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