Circuits I: Example with Wheatstone Bridge (Unbalanced)

This video works through an example problem where we calculate the current through the middle branch of a Wheatstone Bridge circuit.

University of California, Davis
ENG17: Circuits I, Spring Quarter 2015
Instructor: Dr. Kyle Montgomery

[saiqohdianah]

Thank you so much, Mr. Iam a student from Indonesia and Iam studying for my exam. Wish me luck! :)

[doctrina]

I was so stressed because of school and the happy face at the end made me smile lol

[glcstln]

Hi, Dr. Montgometry! I found this very helpful. I've a question though, what happens to the equations if, say for example, there's an ammeter in the middle with resistance?

[agustinbugnoni]

I liked the video because of the video post production.

[agathernakiweewa]

you are a savior, thank you so much. i needed this to get the whole concept.

[Eagervul]

Real great video! Thank you very much, I could literally not find this information anywhere else! Not to say it is so well presented!

[asifmuktadir]

thanks a lot sir. I found this video on a very crucial moment and it was very helpful

[legallifecons]

are you writing backwards? Awesome video.

[soumyajitsarkar]

how can we say 6 ohm and 30 ohm are parallel ? Their end is not at the same potential, given a current flows through mid wire .

[qaiserbozdar]

I have a question. I am calculating total resistance by doing series calculations of 6k and 12k and series calculations of 30k and 20k. Then, through parallel calculations of 18k and 50k, the total resistance I achieved was 13.23Kohms.

Please explain why this contradiction is happening.

[alaattincakir]

@Dr. Montgomery  According to your video middle points of left and right side have same potential. How can current flow through the wire while there is no potential difference? Could you please explain this contradiction? Thank you..

[manojkumarsingh]

Thank you sir for such a suave explanation 🙂🙂

[sahil]

Sir, what would be the current if there is an resistance in path of Id current.and when u upload a video about this if necessary plz send the link in

[donhjoe]

How can I calculate the voltage in the section Ix and the section Vx using the redrawing circuit method?

[kaziaburousan]

sir...can you help me in how to calculate equivalent resistance of a unbalanced wheatstone bridge using Nodal Analysis??

[trungnguyenchanh]

thank you for your explanation; it is very helpful .

[ankitpathak]

how to calculate when the bridge has no resistance

[sushi_life]

I'm confused - I thought the definition of a balanced bridge was when there is no potential difference across the bridge thus no current would flow!?

[chaitanyakeerthi]

Thats crazy. How is the ink colour flurocent? Can you make a video on how you make videos lol. You need to wear black clothes while shooting the video, the text will be visible then :)