Four resistors with resistance, Rz=622, R2=4.2, R3= 592 and R4=312 are arranged in the circuit to the right along with a battery with a potential difference of 12v. A. What is the equivalent resistance of the entire circuit? [5 points) RE الله R3 Vbat RA B. What is the potential across and the current through resistor R?? [4 points] C. What is the potential across and the current through resistor R? [4 points) D. What is the power dissipated by resistor R1?