(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

http://www.ocr.org.uk/Data/publications/past_papers_2005_june/L_AS_Level_Physics_A_2822_Jun_2005_Question_paper.pdf [Broken]

Question 5

2. Relevant equations

3. The attempt at a solution

For a) I put that because the circuit isn't closed there's no current.

for b) I can see that the total resistance would be the sum of

[itex]168k\Omega + R_2[/itex]

[itex]R = \frac{V}{I}[/itex]

[itex]R = \frac{3.4}{I}[/itex]

I don't know the current. I'm new to this so I don't really know how to solve. I think an example would help.

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# Homework Help: Basic question on resistance

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