Kirchhoff's Loop Rule Video Lessons

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Problem: Part A. Find the potential of point a with respect to point b in the figure. Express your answer using two significant figures.Part B. If points a and b are connected by a wire with negligible resistance, find the magnitude of the current in the 10.0 V battery.  Express your answer using two significant figures. Express your answer using two significant figures.

FREE Expert Solution

Kirchhoff's loop rule:

ΣV=0

But:

V=iR

Part A

No current flows in the middle wire because it is not connected. 

The current outside the loop can be taken to be i in a counterclockwise direction.

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Problem Details

Part A. Find the potential of point a with respect to point in the figure. Express your answer using two significant figures.

Part B. If points a and b are connected by a wire with negligible resistance, find the magnitude of the current in the 10.0 V battery.  Express your answer using two significant figures. Express your answer using two significant figures.

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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 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.

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Based on our data, we think this problem is relevant for Professor Rappel's class at UCSD.