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Author Question: Two long parallel wires that are 0.40 m apart carry currents of 10 A in opposite directions. What ... (Read 138 times)

jon_i

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on: Jul 29, 2018
Two long parallel wires that are 0.40 m apart carry currents of 10 A in opposite directions.
 
  What is the magnetic field strength in the plane of the wires at a point that is 20 cm from one wire and 60 cm from the other? (0 = 4  10-7 T  m/A)
  A) 3.3 T B) 67 T C) 33 T D) 6.7 T

Question 2

An 800-kHz sinusoidal radio signal is detected at a point 6.6 km from the transmitter tower.
 
  The electric field amplitude of the signal at that point is 0.780 V/m. Assume that the signal power is radiated uniformly in all directions and that radio waves incident upon the ground are completely absorbed. What is the amplitude of the magnetic field of the signal at that point? (0 = 8.85  10-12 C2/N  m2, c = 3.0  108 m/s, 0 = 4  10-7 T  m/A)
  A) 1.6 nT B) 3.1 nT C) 3.6 nT D) 2.1 nT E) 2.6 nT
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aruss1303

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Reply #1 on: Jul 29, 2018
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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jon_i

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Reply #2 on: Jul 29, 2018
Thanks


aruss1303

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Reply #3 on: Jul 29, 2018
Welcome :)


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