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a third resistor is added in parallel with the first two.

(picture shows 2 resistors connected in parallel to battery)

What happens to the current in the battery?

A. remains the same
B. increases
C. decreases
What happens to the terminal voltage of the battery?

A. remains the same
B. increases
C. decreases

Answer :

Answer:

C.

A

Explanation:

Question 1

When a third resistor is added in parallel to the first two. The effective resistance of the circuit increases R_eq. When the resistance is increased in a circuit while the battery provides a constant voltage the current decreases as per Ohm's Law:

                                        I = V / R_eq

Current and effective resistance are inversely proportional. Hence, the current in the battery decreases.

Question 2

The terminal voltage remains the same because the amount of push required to move electrons in a path remains same. Adding more paths would not require more push, unless resistance is added in the same path i.e series. Hence, terminal voltage of the battery remains the same.

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