(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

a long straight wire carries a current of 2A. an electron travels with a speed of 4*10^4 m/s parallel to the wire at a distance of 0.1 metre from it. what force does the magnetic field exert on the moving electron

2. Relevant equations

what formula should i use? is it f= BqV SIN[tex]\theta[/tex] or f= BIl sin[tex]\theta[/tex]

or f=4*3.14*10^-7* I1*I2* L)/(2*3.14*a)

he attempt at a solution[/b]

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

2. Relevant equations

3. The attempt at a solution

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

2. Relevant equations

3. The attempt at a solution

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

2. Relevant equations

3. The attempt at a solution

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Problem in magnetic effects of current

**Physics Forums | Science Articles, Homework Help, Discussion**