In the picture below, the two wires carry current i1 and i2, respectively, with

Question

In the picture below, the two wires carry current i1 and i2, respectively, with positive current to the right. The charge q is positive and has velocity v to the right. 2 If 1 is less than i2, then the force on q is south.. If i2 - i1 then the force on q equals zero. If i10 and i2 is greater than zero, then the magnetic field near charge q points into the page. If v0, then the force on q is zero B If i1 = 0 and i2 is greater than zero, then the force on q points out of the page. If i2 0 and i1 is greater than zero, then the force on q is north. If i1- i2, then the wires repel each other.

Explanation / Answer

1) True

If I1 < I2, the direction of Bnet is out of the page.

magnetic force towards south

2) False

If I2 = -I1, Bnet is not zero. so, Fnet is not zero.

3) False

because, the direction of magnetic field is out of the page

4) True

F = q*v*B*sin(theta)

if v = 0 ==> F = 0

5) False

the direction of magnetic field is out of the page. Force acts towards wire2.

6) True

the direction of magnetic field is into the page. Force acts towards wire1

7) True

When current is anit parallel the wires repel each other.

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