What is true about the charge moving across a resistor connected to a battery? a. the charge must deplete itself before reaching the second terminal b. the same amount of charge per second delivered to the resistor must return to the battery terminal c. the charge delivered to the resistor will be more then the charge returned to the battery terminal d. charge cannot be delivered to a resistor

b. the same amount of charge per second delivered to the resistor must return to the battery terminal

Explanation:

Battery is a source of constant potential difference in which battery will provide the constant voltage difference at the two end of the conductor where it is connected.

Due to this constant voltage difference charge starts moving in a closed path and hence we can say that battery will give energy to the charge so that it can cross the resistance so here number of charge particles that leaves the positive terminal of the battery must be same as that of number of charge particles that goes into the negative terminal of the battery.

Battery is just proving them energy to move in the closed path.

So here correct answer will be

b. the same amount of charge per second delivered to the resistor must return to the battery terminal

the total distance traveled by the car is

30km + 49km = 79 km .