1. Three batteries are connected in the circuit given below. Multi-loop circuit with three batteries and two external resistors 3.0 Ω ww 2.0 V¦ 4.0 V 1.00 ΥπΩ ни 7.0 V 12.00 4.0 Ω a. Determine the current (including direction) in each branch of the circuit above. b. Calculate the voltage across each battery. c. Determine the rate in which chemical energy is either used or restored in each battery. d. What would be the direction of the current in the middle branch (up or down) if the 3.0 resistor in the left branch were replaced by a 4.0 resistor? Do not attempt to solve the new circuit, but explain your reasoning.