x Turn on thread page Beta
 You are Here: Home >< Maths

# Urgent help rearranging this please watch

1. Hi, I don't actually take a-level maths but I do A2 physics and I'm really struggling at the moment. Could someone please help me rearranged this formula...

Basically, we plot a graph of V/t and calculate a gradient.

We're then given the equation:
V=V0e-t/RC

We know the value for our gradient (V/t), V0 and R. We need to rearrange the equation to get the value for C.

Everyone in my class does a-level maths and I know they ln it all and use y=mx+c but I don't really understand the relevance of that.

I'd be so grateful for any help on this. I have an accessed practical soon and I need to be able to find the value of C from the above data myself in exam conditions. Thank you sooooo much! x
2. (Original post by Sparkliest)
Hi, I don't actually take a-level maths but I do A2 physics and I'm really struggling at the moment. Could someone please help me rearranged this formula...

Basically, we plot a graph of V/t and calculate a gradient.

We're then given the equation:
V=V0e-t/RC

We know the value for our gradient (V/t), V0 and R. We need to rearrange the equation to get the value for C.

Everyone in my class does a-level maths and I know they ln it all and use y=mx+c but I don't really understand the relevance of that.

I'd be so grateful for any help on this. I have an accessed practical soon and I need to be able to find the value of C from the above data myself in exam conditions. Thank you sooooo much! x

so

Solve for C

TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Updated: March 13, 2013
Today on TSR

### How much will your degree earn you?

Find out where yours ranks...

Poll
Useful resources

### Maths Forum posting guidelines

Not sure where to post? Read the updated guidelines here

### How to use LaTex

Writing equations the easy way

### Study habits of A* students

Top tips from students who have already aced their exams