Question

In: Physics

1. A long cable has current I. If the magnitude of the magnetic field at a...

1. A long cable has current I. If the magnitude of the magnetic field at a distance d is B, determine the magnitude of the magnetic field at a distance 2d from the cable.

a. 2B

b. 8B

c. 4B

d. B / 2

e. B / 4

QUESTION 2

1. A circular cable consists of 5 loops with a diameter of 1.0 m each. The cable is placed in an external magnetic field of 0.5 T. When the cable has a current of 4.0 A, it experiences a torque of 4.0 A. Determine the angle between the plane of the cable and the direction of the magnetic field.

a. 0 degrees

b. 30 degrees

c. 90 degrees

d. 45 degrees

e. 60 degree

QUESTION 3

1. I suppose a certain electric cable can carry a maximum current of 125 A. Determine the magnitude of the magnetic field at a point 4.5 m away from the cable.

a. 5.56 x 10 ^ -6 T

b. 3.49 x 10 ^ -5 T

c. 4.69 x 10 ^ -4 T

d. 7.95 x 10 ^ -3 T

e. 1.75 x 10 ^ -5 T

QUESTION 4

1. A 0.150 m long cable is horizontally oriented and has a current of 12.5 A and is in a magnetic field region of 0.625 T. The angle between the direction of the current and the magnetic field is 25 degrees. Determine the magnitude of the magnetic force on the cable.

a. 0.495 N

b. 0.792 N

c. 1.44 N

d. 3.30 N

e. 1.17 N

Expert Solution

genius_generous answered 2 years ago

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