Consider the two circuits shown in the figure below in which the batteries are identical. The resistance of each lightbulb is R. Meglect the internal resistance of the batteries. A B C . n . e s - 4 - + @ (a) Find expressions for the currents in each lightbulb. (Use the following as necessary: & for and R.) I, = A IE = I.= (b) How does the brightness of B compare with that of C? (Use only "= L Explain. or "=" symbols. Do not include any parentheses around the letters or symbols.) (c) How does the brightness of A compare with that of B and of C? (Use only ">" or "=" symbols. Do not include any parentheses around the letters or symbols.) Explain