1981B4. A circuit consists of battery A of emf EA=60 volts and internal resistance rA=3 ohms; battery B of emf EB=12 volts and internal resistance rB=1 ohm; and four resistors connected as shown in the diagram above.
a. Calculate the current in the 2 -ohm resistor.
b. Calculate the power dissipated in the 3 -ohm resistor.
c. Calculate the terminal voltage of battery B.