• Support PF! Buy your school textbooks, materials and every day products Here!

Magnet and Current-carrying wire/circuit

  • Thread starter zebra1707
  • Start date
  • #1
107
0
Hi all Can you assist - I think that I am on the right track - but then I could be wrong..

View attachment Physics Question 1.doc

Homework Statement



Predict which direction the wire will move

Homework Equations



Right hand rule

The Attempt at a Solution



Current flows from positive to negative. Right hand rule has magnetic field - anticlockwise.
A northward force. The assumption is that the wire will move away from the magnet.


Two other related questions...

2. Would the wire returning from the resistor to the source be affected in the same direction and or as strongly. Explain?

I assume a southward field and therefore will be attracted to the magnet.

3. In the absence of the magnet, would the two long wires exert any force on each other? Explain.

No, force.



Cheers Petra
 

Answers and Replies

  • #2
76
0

Homework Equations



Right hand rule
To work out the direction the wire will move you will need to use Flemings left hand rule, the right hand rule is for generators =]
 
Last edited:
  • #3
107
0
HI Rory

Thanks for the reply. The question states (Remember the righthand rule).

To work out the direction the wire will move you will need to use Flemings left hand rule, the right hand rule is for generators =]
Cheers Petra
 

Related Threads on Magnet and Current-carrying wire/circuit

Replies
5
Views
12K
  • Last Post
Replies
6
Views
3K
Replies
13
Views
629
Replies
2
Views
4K
Replies
6
Views
748
Replies
2
Views
4K
Replies
1
Views
1K
Replies
3
Views
1K
Replies
6
Views
1K
Top