a straight, 2.5-m wire carries a typical household current of 1.5 a (in one direction) at location where the earth's magnetic fi

Question

18 days ago

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a straight, 2.5-m wire carries a typical household current of 1.5 a (in one direction) at location where the earth's magnetic fi

eld i 0.55 gauss from south to north at a location where the earth's magnetic field is 0.55 gauss from south to north. find the magnitude and direction of the force that our planet's magnetic field exerts on this wire if it is oriented so that the current in it is running (a) from west to east, (b) vertically upward, (c) from north to south. (d) is the magnetic force ever large enough to cause significant effects under normal household current of 1.5 A

Physics

2 answers:

Keith_Richards [2.8K] · Answer 1 · 2026-03-18T03:31:05+03:00

a) The force's magnitude is $F=2.1*10^{-4}N$

, and it acts in the direction from south to north, meaning upward. b) The force's magnitude is $F=2.1*10^{-4}N$

, with the direction pointing towards the west. c) The magnitude of the force is $F=2.1*10^{-4}N$

, indicating zero force since the magnetic field aligns parallel to the current (south to north). d) Our conclusion is that the magnetic force is not substantial enough to create impactful consequences at a standard household current of 1.5 A.

kicyunya [2.9K] · Answer 2 · 2026-03-18T03:32:03+03:00

a) When the current flows from west to east and the magnetic field is oriented from south to north, the magnitude of the force is 2.1x10⁻⁴N, directed upwards. b) For a vertically upward current, its force is also 2.1x10⁻⁴N but directed westward. c) The force equals zero since the directions of the magnetic field and current are parallel. d) The conclusion is no; the force is insufficient.