Electric current measures (in amperes or amps) the flow of electrons through wires. Like traffic flow, the current entering an intersection of wires must equal the current leaving it. + Here is an electrical circuit known as a Wheatstone bridge. (a) If the currents in two of the wires are a = 70 amps and b = 35 amps as shown, determine the currents in the other wires in terms of suitable parameters. (If there is no solution, enter NO SOLUTION. If the system is dependent, express your answer using the parameters x, y, z, and/or w.) (x, y, z, W) = (b) Using the information obtained in part (a), in which wire should you measure the current in order to know all of the currents exactly? (Select all that apply.) O By measuring x, we can determine y, z, and w. O By measuring y, we can determine x, z, and w