ABCDEFGH is a hollow cube made of an insulator (see figure). Face EFGH has positive charge on it. Inside the cube, we have ionised hydrogen.The usual kinetic theory expression ABCDEFGH is a hollow cube made of an insulator (see figure). Face EFGH has positive charge on it. Inside the cube we have ionised hydrogen.The usual kinetic theory expression October 27, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) , Facebook Messenger WhatsApp Share this:TwitterFacebook Related