Find the value of R_{L} for maximum power transfer through R_{L}, and the maximum power. Circuit: a 12 V source in series with 6 Ω feeds node v₁; 12 Ω is connected from v₁ to the reference; 3 Ω joins v₁ to a second node, into which a 2 A current source drives current from the reference; 2 Ω then joins that node to terminal a, and R_{L} is connected between a and the reference.