Question

The chart shows the voltage of four electric currents.

Which is best supported by the data in the chart?

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.

Answer 1

Answer: The correct option is Current W flows at a higher rate than Current Z.

Explanation: To answer this question, we will require Ohm's law.

Ohm's Law states that the current flowing through a conductor across two points is directly proportional to the voltage difference across that two points.

Mathematically,

`V=IR`

where, V = voltage

I = Current

R = resistance

For the given question, assuming that the resistance is constant. So, the current is directly proportional to the voltage.

`V\propto I`

Hence, as the current W is greater of all the given currents so, it will flow at a higher rate.

Therefore, the correct answer is Current W flows at a higher rate than Current Z.

Answer 2

C

Step-by-step explanation:

Current X has a lower potential difference than Current Y.

Took test on edge 2020.