find current and resisrance

1.For the entirety of this problem, refer

to the circuit diagram to the right. If the current

in the 8.00-W resistor is 0.750 A, find the (a)

current through the remaining resistors, (b) the

electric potential across of all of the resistors,

and (c) the EMF of the battery.

2. For the entirety of this problem, refer to the circuit diagram below.

a. Determine the current (both magnitude and direction) in the 8.0- and 2.0-W

resistors and the 12- and 4.0-V batteries.

b. What is the power dissipated by each individual resistor?

c. What total power do the batteries supply to the circuit?