Verified Solution • 2025–26 Session moderate

QJEEM19Ph8767: JEE Main 2019 Physics - Class 12 JEEM19Ph8767 Solution: Three charges Q, + q and + q are placed at the vertices of a…

Three charges Q, + q and + q are placed at the vertices of a right-angle isosceles triangle as shown below. The net electrostatic energy of the configuration is zero, if the value of Q is :

JEE Main 2019 (Online) 11th January Morning Slot Physics - Electrostatics Question 180 English

Multiple Choice Options

  • A −q1+2
  • B #NAME?
  • C − 2q
  • D −2q2+1

Step-by-Step Verified Solution

JEE Main 2019 (Online) 11th January Morning Slot Physics - Electrostatics Question 180 English Explanation

U = K[q2a+Qqa+Qqa2]=0

⇒  q = − Q[1+12]

⇒  Q = −q22+1

Related Learning Resources & Exam Preparation

JEE Main PYQ Question Bank
Browse year-wise authentic previous years' questions with solutions
Authentic CBT Mock Tests
Simulate official exam environment with live timer and percentile scoring