Please Select True/False with explanations. In the picture below, the two wires

Question

Please Select True/False with explanations.

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 v = 0, then the force on q is zero. If i_1 is greater than i_2, then the force on q is north. If i_1 = i_2, then the wires are attracted to each other. If i_2 = 0 and i_1 is greater than zero, then the magnetic field near charge q points out of the page. If i_1 = 0 and i_2 is greater than zero, then the force on q points out of the page. 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.

Explanation / Answer

1 ) F = q*V*B

if V = 0 then yes F = 0

True

2) field due to i1 down in the page

field due to i2 up in the page

so if i1>i2 then down field grater

so F = q* (vXB) will be in in North   

True

3)

True

4) if i2 = 0

then field in down in the page

so

False

5) i1 = 0

i2>0 then

B out of the page so F will be south

False

6)

i2= -i1

False   

7) i1 = 0

i2> 0

F = south

True

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