Four charges equal to -Q are placed at the four corners of a square and a charge q ia at its centre. If the system is in equilibrium the value of q is Four charges equal to -Q are placed at the four corners of a square and a charge q ia at its centre. If the system is in equilibrium the value of q is September 15, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) , Facebook Messenger WhatsApp Share this:TwitterFacebook Related