Consider two parallel wires where the mag- nitude of the left current is 2 I 0 a

Question

Consider two parallel wires where the mag- nitude of the left current is 2 I0 and that of the right current is I0. Point A is midway be- tween the wires, and B is an equal distance on the other side of the wires.

The ratio of the magnitude of the magnetic

field at point A to that at point B is

1. Ba/Bb= 5/2

2.Ba/Bb=1/3

3.Ba/Bb=0

4.Ba/Bb=2

5.Ba/Bb=4

6.Ba/Bb=9

7.Ba/Bb=2/3

8.Ba/Bb=1/2

9.Ba/Bb=3

10. Ba/Bb=4/3

Consider a long wire and a rectangular current loop.

Determine the magnitude and direction of the net magnetic force exerted on the rectan- gular current loop due to the current I1 in the long straight wire above the loop.

Consider two parallel wires where the mag- nitude of the left current is 2 I0 and that of the right current is I0. Point A is midway be- tween the wires, and B is an equal distance on the other side of the wires. The ratio of the magnitude of the magnetic field at point A to that at point B is Ba/Bb= 5/2 Ba/Bb=1/3 a/Bb=0 Ba/Bb=2 Ba/Bb=4 Ba/Bb=9 Ba/Bb=2/3 Ba/Bb=1/2 Ba/Bb=3 Ba/Bb=4/3

Explanation / Answer

1)10

2)2

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