Force exerted by a current carrying wire

[Roodles01]

Homework Statement

A long thing wire carries a current of 2.0A.
An electron of charge -1.6x10^-19 moves parallel to the wire at a distance, d of 0.01m
The electron velocity is 100km/s.

State the magnitude & direction of the force acting on the electron.

Homework Equations

Hmmm! Not really sure about this. Should I use Coulombs Law? Momentum. Newton's 2nd F=dp/dt
q₁ q₂ / 4∏εr² rhat

Certainly Right hand rule.

The Attempt at a Solution

 

[mfb]

The wire is not charged, Coulomb's law is not relevant.

Hint: The force comes from the magnetic field.

 

[Roodles01]

Well direction magnetic field of wire is found by the"right hand rule";
grab wire with thumb pointing in direction of current & mag field goes in direction of curl of fingers around the wire.
Then force is mutually perpendicular to v & B as I understand.

Good start I think. Yes?

I will try to put more down as I have time.

 

[Roodles01]

Ah! Amperes law I think to find strength of magnetic field. Yes or no.

 

[mfb]

That is the correct approach, right.