Magnet and Current-carrying wire/circuit

  • Thread starter zebra1707
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  • #1
zebra1707
107
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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
RoryP
76
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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
zebra1707
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
 

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