The currents through several segments of a wire object are shown in (Figure 1). Figure1 of 1 A wire forks once on the right side, forming the top and the bottom branches. Then each of those branches forks once more, forming four sub-branches. Then the bottom sub-branch of the top branch and the top sub-branch of the bottom branch merge. The original wire carries a current of 5 amperes, directed from its left end to its forked right end. The bottom branch carries a current of 3 amperes, directed to the right. Its bottom sub-branch carries a current of 2 amperes. The bottom sub-branch of the top branch carries a rightward current of 1 ampere. The top sub-branch of the top branch is labeled B. The merged sub-branch is labeled C. Part A What is the magnitude of the current IB in segment B? Express your answer in amperes