Question

the chart shows the voltage of four electric currents. which is best supported by the data in the chart? voltage of currents current volts (v) w 9.0 x 1.5 y 3.0 z 4.5 current w flows at a higher rate than current z current y flows at a lower rate than current x current x has a lower potential difference than current y current z has a greater potential difference than current w

Explanation:

Step1: Understand voltage as potential - difference

Voltage is the potential - difference. Higher voltage means higher potential - difference.

Step2: Compare values

We have \(V_W = 9.0\) V, \(V_X=1.5\) V, \(V_Y = 3.0\) V, \(V_Z = 4.5\) V.

Step3: Analyze each option

• Option 1: Current \(W\) has \(V_W=9.0\) V and \(V_Z = 4.5\) V. Since \(9.0>4.5\), current \(W\) has a higher potential - difference (flows at a higher rate in terms of potential - difference) than current \(Z\).
• Option 2: \(V_Y = 3.0\) V and \(V_X=1.5\) V. Current \(Y\) has a higher potential - difference than current \(X\), so this option is wrong.
• Option 3: \(V_X = 1.5\) V and \(V_Y=3.0\) V. Current \(X\) has a lower potential - difference than current \(Y\), but this is the opposite of what the option says.
• Option 4: \(V_Z = 4.5\) V and \(V_W=9.0\) V. Current \(W\) has a greater potential - difference than current \(Z\), so this option is wrong.

Answer:

Current W flows at a higher rate than Current Z.