Consider the circuits shown in Figure. (a) Determine the value of the resistance R in Figure b that makes the circuit in Figure b equivalent to the circuit in Figure a. (b) Determine the current i in Figure b. Because the circuits are equivalent, the current i in Figure a is equal to the current i in Figure b. (c) Determine the power supplied by the voltage source. (Use series resistors and voltage division concept) w w- 28 V (a) 28 V (b)