Please show me how to get the correct answer which was 8.16 Thank you! A magneti
ID: 1439744 • Letter: P
Question
Please show me how to get the correct answer which was 8.16
Thank you!
A magnetic field has an x component of 1 millitesla and z component of 4 millitesla. A wire which is 0.9 meters long has a current of 2.2 amps directed in +y direction is placed in the field. What is the magnitude of the magnetic force on this charge in milli-Newtons? Hint: think of the amount and the direction of the magnetic force on the wire if the field was just in the x direction only. Then do the same if the field was in the z direction only. Use these two results to find the answer.
A magnetic field has an x component of 1 millitesla and z component of 4 millitesla. A wire which is 0.9 meters long has a current of 2.2 amps directed in +y direction is placed in the field. What is the magnitude of the magnetic force on this charge in milli-Newtons? Hint: think of the amount and the direction of the magnetic force on the wire if the field was just in the x direction only. Then do the same if the field was in the z direction only. Use these two results to find the answer.
Selected Answer:[None Given]
Correct Answer:8.16 ± 10%
Explanation / Answer
B = (i + 4k)mT
L = 0.9 , i = 2.2 j
Magnetic force F =L (ixB)
F = 0.9(2.2j)x((1i +4k))
F = (- 1.98 k + 7.92 i) mN
Magnitude of F = ((-1.98)^2+(7.92)^2)^0.5
F = 8.16 mN
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