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# Stuck on these two circuit questions watch

1. Hi all,
I would really appreciate some help on the following circuit questions:

I am bamboozled at fear there's something simple tripping me up.

Happy Easter to all!

Chaz
2. (Original post by chaza01)
Hi all,
I would really appreciate some help on the following circuit questions:

I am bamboozled at fear there's something simple tripping me up.

Happy Easter to all!

Chaz
What help do you need?
Have you done Kirchhoff's Rules?
Have you set up the loop equations for the circuits?
Are you getting the wrong answer or is it that you don't know how to solve the equations?
Let us know then we can give you the help you need.
3. (Original post by Stonebridge)
What help do you need?
Have you done Kirchhoff's Rules?
Have you set up the loop equations for the circuits?
Are you getting the wrong answer or is it that you don't know how to solve the equations?
Let us know then we can give you the help you need.
Hi, thanks a lot for the reply.

I'm completely stuck as in not sure where to start! Would these questions come up at AS level?

I'd really appreciate it if you sort of talked me through it, though I understand that would probably take a bit of time so don't worry.

I am aware that the current going into a junction must equal total current out.
I am not sure from there.
Sorry, I'm useless at this.

Chaza
4. (Original post by chaza01)
Hi, thanks a lot for the reply.

I'm completely stuck as in not sure where to start! Would these questions come up at AS level?

I'd really appreciate it if you sort of talked me through it, though I understand that would probably take a bit of time so don't worry.

I am aware that the current going into a junction must equal total current out.
I am not sure from there.
Sorry, I'm useless at this.

Chaza
You need to look at the exam spec on the exam board website to see if this is in your AS syllabus.

We need to know if you have done Kirchhoff's Voltage Law and can set up an equation for each loop in the circuit. If you haven't done this in class yet there is little point in doing the questions.
If you have done it in class, what does it say in your notes/books about the emfs and the potential differences in a closed loop?
There are a couple of different ways of setting the equations up. It's important you do it the way you have been taught as it could confuse you further if we suggest a different method.

There's a recent thread on this here that might help
http://www.thestudentroom.co.uk/show....php?t=2268108

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