Question

measurements of two electric currents are shown in the chart. which best compares the two currents? current x has a greater potential difference, and the charges flow at a slower rate. current y has a greater potential difference, and the charges flow at a slower rate. current x has a greater potential difference, and the charges flow at a faster rate. current y has a greater potential difference, and the charges flow at a faster rate.

Explanation:

• Voltage (potential difference) comparison:
• Voltage of current \(X = 1.5\space V\) and voltage of current \(Y=9\space V\). Since \(9>1.5\), current \(Y\) has a greater potential difference.
• Current (rate of charge flow) comparison:
• Current is the rate of flow of electric charge (\(I=\frac{Q}{t}\)). Current of \(X = 7.8\space A\) and current of \(Y = 0.5\space A\). Since \(0.5<7.8\), charges flow at a slower rate in current \(Y\).

Answer:

Current Y has a greater potential difference, and the charges flow at a slower rate.