In the picture below, the two wires carry current i_1 and i_2, respectively, wit

Question

In the picture below, the two wires carry current i_1 and i_2, respectively, with positive current to the right. The charge q is positive and has velocity v to the right. If i_2 is greater than i_2, then the force on q is north. If i_2 = - i_1 then the force on q equals zero. If i_1 = 0 and i_2 is greater than zero, then the force on q is south. If v = 0, then the force on q is zero. If i = i_2, then the wires are attracted to each other. If i_1 = 0 and i_2 is greater than zero, then the force on q points out of the page. If i_2 = 0 and i_1 is greater than zero, then the magnetic field near charge q points out of the page.

Explanation / Answer

1) True
Because, the direction net magnetic field is towards into the page.

2) False
Because, the direction net magnetic field is increases and towards into the page.

3) True
Because, the direction of magnetic field is out of the page.

4) True
because, F = q*v*B*sin(theta)

5) True

6) False
The direction of F will be towards south.
because, the direction of magnetic field is out of the page.

7) False
The direction of F will be towards North.
because, the direction of magnetic field is into the page.

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