You are Here: Home

# Factors Affecting The Resistance Of A Wire watch

1. I sooooooooo need some help on what to do with this coursework, ive got a physics teacher, who doesn't give us any help at all. My english teacher though helps me loads, can someone please tell me what to do, THANKS!
2. basic factiors: Length, Width, resistivity of the wire.

Comes from this formulae:

R= pL/A

R = resistance
p = resistivity
L = length
A = surface area
3. (Original post by 2776)
basic factiors: Length, Width, resistivity of the wire.

Comes from this formulae:

R= pL/A

R = resistance
p = resistivity
L = length
A = surface area
We've covered this in Physics
4. surface area of the wire? that seems wrong...
5. (Original post by 2776)
basic factiors: Length, Width, resistivity of the wire.

Comes from this formulae:

R= pL/A

R = resistance
p = resistivity
L = length
A = surface area
A is cross-sectional area.
6. I did this coursework, all you really have to do is read up about it and get to know how electricity works and the crystal matrice or something, and stuff about pd and stuff... (hehehe that's a lot of 'stuff') read through your textbook and revision book if you have one...
7. (Original post by JamesF)
A is cross-sectional area.
Yes, thats what I meant, therefore you needed to know the width of the wire ie radius,

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 2, 2004
Today on TSR

### Congratulations to Harry and Meghan!

But did you bother to watch?

### Why are girls so attracted to tall guys?

Poll

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE