I only need help with part B please. I put part A for reference (a) Determine th

Question

I only need help with part B please. I put part A for reference

(a) Determine the potential difference ?Vab for the circuit in Figure P18.28. Note that each

battery has an internal resistance as indicated in the figure. (b) If points a and b are connected by

a 7.0-? resistor, what is the current through this resistor?

Part B

Consider problem 50 in Discussion 4b. Compare the situation just after the switch S is closed to that after the steady state situation as described in the problem is reached. The current in 3.00-k? resistor just after the switch is closed is

Question options:

a. larger than the voltage across the resistor in the steady state situation.

b. zero.

c. smaller than the voltage across the resistor in the steady state situation.

d. equal to the voltage across the resistor in the steady state situation.

a. larger than the voltage across the resistor in the steady state situation.

b. zero.

c. smaller than the voltage across the resistor in the steady state situation.

d. equal to the voltage across the resistor in the steady state situation.

Explanation / Answer

The current in 3.00-k resistor just after the switch is closed is  larger than the current across the resistor in the steady state situation.

I cant understand why they are comparing current with voltage!

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