Problem: The currents in two resistors in a circuit are shown in the figure above. What is the value of resistor R?

FREE Expert Solution

Ohm's law:

V=iR

From Kirchhoff's junction rule:

2.5 + iR = 1.5

iR = 1.5 - 2.5 = -1 A = 1 A

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Problem Details

The currents in two resistors in a circuit are shown in the figure above. What is the value of resistor R?

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Kirchhoff's Junction Rule concept. You can view video lessons to learn Kirchhoff's Junction Rule. Or if you need more Kirchhoff's Junction Rule practice, you can also practice Kirchhoff's Junction Rule practice problems.