Two long, straight wires, one above the other, are seperated by a distance d = 1.53 cm and are parallel to the x−axisx−axis. Let the +y−axis+y−axis be in the plane of the wires in the direction from the lower wire to the upper wire. Each wire carries current 34 A in the +x−direction+x−direction. Find the magnetic force on a negative point charge 79 μCμC moving with velocity 3.49×105 m/s in the +y-direction, when the charge is:

a)  

b)  

Explanation:

Given that:

q = -79 μC

q = - 79×10⁻⁶ C

d = 1.53 cm

d = 0.0153 m

I = 34 A

v = 3.49×10⁵ m/s

The force on charge q is given by

a) At midway (A) , the B will be :

 and   will be equally the same in respect to their magnitude but opposite direction at point A.

So;

where

∴  

∴

b)

At a distance d/2 cm above the upper wire:

where:

  ; upward to the plane of paper

∴

B =

B =

B =

B = 2.074 × 10⁻³T  

∴

i would like to make dinner for my mom, dad, and sister

laticia draws the diagram below to show earth’s magnetic field.

answer

the arrows to the right of earth should point up.