Recent content by ashlynne_

Okay! I understand it now. Thank you so much for your prompt replies and explanations! (:

Oh, I see. But how do you determine which part of the circuit would be more convenient as the ground reference?

Oh, okay! I get it now! So in the case of the 2nd problem, the reference point would be point Z? & can I assume it to be at 0V?

It's alright :) Uhm, but how do I calculate the potential at X? Between which points do I look for the voltage drop?

Oh, okay! This is what I did:

Okay, I've worked out that the resistance across the 4.8Ω resistor is 3.10V, and that through the 7.6Ω resistor is 4.90V. So the current through the circuit is 0.645A, and I make use of this value to multiply with the total resistance through the circuit?

Okay..thanks. for the first problem, this is what I was able to come up with: I don't know how should I carry on from there. Does the current actually split when it is between point X and the 4.8Ω resistor?

I have not been able to solve these 3 questions. (attached) I understand that parallel circuits can be identified by checking if there are branches at a particular point, but I am still unable to simplify these circuits and solve these questions. Any help would be greatly appreciated! Thanks! :)