Four charges Q₁, Q₂, Q₃ and Q₄ of same magnitude are fixed along the x axis at x = -2a, -a, +a and +2a , respectively. A positive charge q is placed on the positive y axis at a distance b 0. Four options of the signs of these charges are given in List I. The direction of the forces on the charge q is given in List II. Match List I with List II and select the correct answer using the code given below the lists. List I List II P. Q₁, Q₂, Q₃, Q₄ all positive 1. +x Q. Q₁, Q₂ positive; Q₃, Q₄ negative 2. -x R. Q₁, Q₄ positive; Q₂, Q₃ negative 3. +y S. Q₁, Q₃ positive; Q₂, Q₄ negative 4. -y [JEE Adv 2014 P2]

Question

Four charges Q₁, Q₂, Q₃ and Q₄ of same magnitude are fixed along the x axis at x = -2a, -a, +a and +2a , respectively. A positive charge q is placed on the positive y axis at a distance b > 0. Four options of the signs of these charges are given in List I. The direction of the forces on the charge q is given in List II. Match List I with List II and select the correct answer using the code given below the lists. List I List II P. Q₁, Q₂, Q₃, Q₄ all positive 1. +x Q. Q₁, Q₂ positive; Q₃, Q₄ negative 2. -x R. Q₁, Q₄ positive; Q₂, Q₃ negative 3. +y S. Q₁, Q₃ positive; Q₂, Q₄ negative 4. -y [JEE Adv 2014 P2]

Examsnet · Accepted Answer

Correct Answer is : P-3, Q-1, R-4, S-2

List I		List II
P.	$Q_1, Q_2, Q_3, Q_4$ all positive	1.	$+x$
Q.	$Q_1, Q_2$ positive; $Q_3, Q_4$ negative	2.	$-x$
R.	$Q_1, Q_4$ positive; $Q_2, Q_3$ negative	3.	$+y$
S.	$Q_1, Q_3$ positive; $Q_2, Q_4$ negative	4.	$-y$

JEE Advanced 2014 Paper 2