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Thermal Expansion

Two point cha...

Question

Two point charges $A$ and $B$ are placed on X-axis. Considering electric field $E$ is positive if directed in positive X-direction. Variation of electric field strength with distance $x$ is shown figure for $x$ lying between the charges. Then the nature of charges $A$ and $B$ are respectively.

A

Positive, positive

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B

Negative, negative

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C

Positive, negative

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D

Negative, position

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Solution

The correct option is C Positive, negative
$\begin{matrix} n e a r A (t o w a r d n i g h t), \to E i s p o s i t i v e ∴ A i s p o s i t i v e c h e s i m i l a r l y : B i s n e g a t i v e c h e H e n c e, o p t i o n C i s c o r r e c t a n s w e r . \end{matrix}$

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