Thank u!! Please show the final answers and the solution process :) Jumper cable

Question

Thank u!! Please show the final answers and the solution process :)

Jumper cables are connected from a fresh battery in one car to charge a dead battery in another car. The figure below shows the circuit diagram for this situation. While the cables are connected, the ignition switch of the car with the dead battery is closed and the starter is activated to start the engine. (Let R = 0.850 ? and Rs = 0.07 ?.)

(a) Determine the current in the starter
A downward

(b) Determine the current in the dead battery.
A upward

(c) Is the dead battery being charged while the starter is operating?

Yes or No or There is not enough information.

Thank u!! Please show the final answers and the solution process :) Jumper cables are connected from a fresh battery in one car to charge a dead battery in another car. The figure below shows the circuit diagram for this situation. While the cables are connected, the ignition switch of the car with the dead battery is closed and the starter is activated to start the engine. (Let R = 0.850 ? and Rs = 0.07 ?.) (a) Determine the current in the starter A downward (b) Determine the current in the dead battery. A upward (c) Is the dead battery being charged while the starter is operating? Yes or No or There is not enough information.

Explanation / Answer

so Ilive + Idead = I starter

big loop

12 - 0.01 Ilive - 0.07 Istarted = 0

I live = (12 - 0.07 I starter)/0.01

right loop

12 - 0.085 I dead - 0.07 I starter = 0

Idead = (12-0.07 I starter)/0.085

plug into first euqation

(12 - 0.07 I starter)/0.01 + (12-0.07 I starter)/0.085 = I starter

I starter = 152 A

b) Idead = (12-0.07*152)/0.085= 16 A

c) No since I is positive so it is using power in battery

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