Acertain linear two-terminal circuit has terminals a and b. under open-circuit conditions, we have vab =10 v. a short circuit is connected across the terminals, and a current of 2 a flows from a to b through the short circuit. part a determine the value of vab when a nonlinear elements that has iab = y vab is connected across the terminals. express your answer to three significant figures and include the appropriate units. thår o ? vab = value units submit request answer