How to do these two questions? Can give me some hints? Thank you In 2.51 How can we setting up R is infinite.. R is infinite-->power is infinite(T-To is infinite)? Actually I have no idea of how to set up the equations..As the value of T is unknown.. In 2.65 By KVL VG-V conductor+VM=0 if VM=105V V conductor=215V if VM=117V V conductor=227V I think that the range of resistance can be found And then what should I do?