\\\\({ D }_{ 1 }\\\\) is reversed biased (No current flow)\\\\( { D }_{ 2 }\\\\) is forward biased (current flow)\\\\( { E }_{ o }\\\\) total resistance\\\\(={ R }_{ L }+{ R }_{ { D }_{ 2 } }\\\\)\\\\( { R }_{ total }=5\\Omega +10\\Omega\\\\)\\\\( =15\\Omega\\\\) current through the circuit\\\\( \\cfrac { V }{ R } \\\\)Ohm's law\\\\( =\\cfrac { 30V }{ 15\\Omega } =2A\\\\)