An uncharged aluminum block has a cavity within it. The block is placed in a region where a uniform electric field is directed upward. An uncharged aluminum block has a cavity within it. The block is placed in a region where a uniform electric field is directed upward. December 6, 2020 Category: Cengage JEE Mains Physics by B.M Sharma , Chapter 17 - Electric Charge and Field , Facebook Messenger WhatsApp Share this:TwitterFacebook Related