Positive and negative point charges of equal magnitude are kept at (0,0, (a)/(2)) and (0,0, (-a)/(2)) , respectively. The work done by the electric field when another positive point charge is moved from (-a, 0,0) to (0

Correct answer: C. zero A (-a, 0,0) B (0, a, 0) Point charge is moved from A to B aligned V_A & =V_B=0 W & =0 aligned W=0 or the correct option is (c).

JEE Advanced 2007Paper 2

Exam: JEE Advanced
Year: 2007
Paper: Paper 2
Subject: Physics
Chapter: Electrostatics

JEE Advanced 2007 · Paper 2 · Physics · Electrostatics

Positive and negative point charges of equal magnitude are kept at...

Positive and negative point charges of equal magnitude are kept at

\left(0,0, \frac{a}{2}\right)

and \left(0,0, \frac{-a}{2}\right)

, respectively. The work done by the electric field when another positive point charge is moved from

(-a, 0,0) to (0, a, 0) is Positive and negative point charges of equal magnitude are kept at (0,0, (a)/(2)) and (0,0, (-a)/(2)) , respectively.

Options

Apositive
Bnegative
Czero
Ddepends on the path connecting the initial and final positions

Correct answer

C. zero

Step-by-step solution

A \equiv(-a, 0,0) B \equiv(0, a, 0)

Point charge is moved from

A to B

\begin{aligned} V_A & =V_B=0 \\ W & =0 \end{aligned}

$$ \therefore \quad W=0 or the correct option is (c). Positive and negative point charges of equal magnitude are kept at (0,0, (a)/(2)) and (0,0, (-a)/(2)) , respectively.

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