2021PPp1q36 DC circuit, which circuit has a potential difference between P and Q

Do you understand why there is a potential difference between P and Q? What if you are to find the potential difference between P and Q?

There is a shortcut to getting the answer for this MCQ, but watch the whole video to understand the concepts fully and find the value of the potential difference.

Answer: Option D

Video the explanation

https://youtu.be/jga8vU1AdA8

Another question with similar concept: 2012PPp2q07

https://www.sgphysicstuition.com/post/2012ppp2q07-find-the-p-d-across-a-and-c