Two different wires having lengths L1 and L2, and respective temperature coefficient of linear expansion α1 and α2, are joined end-to-end. Then the effective temperature coefficient of linear expansion is and respective temperature coefficient of linear expansion α1 and α2 are joined end-to-end. Then the effective temperature coefficient of linear expansion is Two different wires having lengths L1 and L2 September 19, 2021 Category: JEE Mains Physics 2002-2019 Solved Video Solutions , Practice Set 1 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related