In the circuit below, i1 = -1 A and v1 = 10 V. (a) If RL=13.5?RL=13.5? in the circuit below, find vxvx and the power supplied by the 10 V source. (b) Keeping RLRL the same as in part (a), Transform the practical voltage source (10V,10?)(10V,10?) into a practical current source, and find vxvx and the power supplied by the new ideal current source. (c) What value of RLRL will absorb the maximum power, and what is that value of that power?