Magnet and Current-carrying wire/circuit

zebra1707

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

1. The problem statement, all variables and given/known data

Predict which direction the wire will move

2. Relevant equations

Right hand rule

3. 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

Related Introductory Physics Homework News on Phys.org

RoryP

2. Relevant 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:

zebra1707

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

Physics Forums Values

We Value Quality
• Topics based on mainstream science
• Proper English grammar and spelling
We Value Civility
• Positive and compassionate attitudes
• Patience while debating
We Value Productivity
• Disciplined to remain on-topic
• Recognition of own weaknesses
• Solo and co-op problem solving