The magnetic field at the right-rod, due to the current in the left-rod, is 1. i

ID: 1265154 • Letter: T

Question

The magnetic field at the right-rod, due to

the current in the left-rod, is

1. in the plane of the paper pointing right.

2. in the plane of the paper pointing left.

3. in the plane of rods pointing downward

slanting to left.

4. into the plane of the paper.

5. in the plane of rods pointing downward

slanting to right.

6. in the plane of rods pointing upward slanting

to right.

7. in the plane of rods pointing upward slanting

to left.

8. out of the plane of the paper.

9. along the right-rod pointing upward.

10. along the right-rod pointing downward.

009 10.0 points

Consider a straight wire carrying current

I = 7 A

d = 7.3 m

F = 2.6*!0^-6 N

Now, force on a wire in a magnetic field is given by:

F = B*I*d

where B = magnetic field

So, B = F/Id = 2.6*10^-6/(7*7.3) = 5.09*10^-8 T <------answer

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