Kirchhoff's Loop Rule Video Lessons

Concept

# Problem: Part A. What is the magnitude of the current in the 30-Ω resistor in the figure? Answer in AmperesPart B. What is the direction of the current?

###### FREE Expert Solution

Ohm's law:

$\overline{){\mathbf{V}}{\mathbf{=}}{\mathbf{i}}{\mathbf{R}}}$

(a)

Let us assume the current move in a clockwise direction.

Applying Kirchoff's loop rule:

9.0V - i(30Ω) - 6.0V = 0

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###### Problem Details

Part A. What is the magnitude of the current in the 30-Ω resistor in the figure? Answer in Amperes

Part B. What is the direction of the current?

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 Loop Rule concept. You can view video lessons to learn Kirchhoff's Loop Rule. Or if you need more Kirchhoff's Loop Rule practice, you can also practice Kirchhoff's Loop Rule practice problems.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Ertl & Hatch's class at UMASS.