If the total voltage (V total) is 30V and I total is 0.03A, how much current is I3 if all currents are equal?

In this scenario, to determine the value of I3, we first look at the total current and understand how it is distributed among the multiple currents, presuming they are equal. Given that the total current (I total) is 0.03A, if the system is designed such that I3 represents one of several equal currents, we’d need to know how many equal currents there are to divide the total current accordingly.

If we define the total current as being distributed over multiple branches in a circuit, we can express that total current as being the sum of all the individual currents. Assuming there are two branches (since often in problems like this a common assumption is made about the number of equal currents), then each current would be equal to the total current divided by the number of branches.

So if there are two currents (I1 and I2), each current would be: I1 = I2 = I total / 2 = 0.03A / 2 = 0.015A.

Therefore, if current I3 is also equal to these currents, it too would be 0.015A. This reasoning leads us to confirm that the choice indicating 0.015A accurately reflects the equal distribution of the total