A thin hemispherical shell having uniform surface charge density sigma spins with an angular speed omega. Find the magnetic field at field at O. A thin hemispherical shell having uniform surface charge density sigma spins with an angular speed omega. Find the magnetic field at field at O. October 16, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) , Facebook Messenger WhatsApp Share this:TwitterFacebook Related