Question

Question 1 of 10

What happens to a circuit's resistance (R), voltage (V), and current () when
you increase the diameter of the wire in the circuit?
OA. Rincreases.
V decreases.
/ decreases.
B. Rincreases.
Vis constant.
/increases.
OC. Rdecreases.
Vincreases.
/increases.
OD. R decreases.
Vis constant.
/increases.

Answer 1

Increasing the diameter of the wire in a circuit decreases its resistance, keeps the voltage constant, and increases the current as dictated by Ohm's law.

Step-by-step explanation:

When you increase the diameter of the wire in a circuit, the overall resistance (R) decreases because a thicker wire has more area for the electrons to flow through, reducing the resistance. According to Ohm's law (V = IR), the voltage (V) across the wire remains constant because it is determined by the power source, not the wire's diameter. As a consequence of the decreased resistance, the current (I) increases, since current is inversely proportional to resistance. So, the correct answer is option D: R decreases, V is constant, I increases.