Physics
Physics, 19.07.2019 08:30, heavenwagner

What is the shape of a magnetic field about a current-carrying wire?

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Chemistry, 31.07.2019 03:10, eburnhisel2023
Acurrent‑carrying wire lies in a region where there is an external magnetic field, but there is no magnetic force acting on the wire. how can this be? a) the length of the wire is oriented either parallel or antiparallel to the magnetic field lines at the location of the wire b) the current is carried by equal numbers of positive and negative charges that flow in opposite directions along the wire c) the magnetic field is generated by a second wire carrying a current in the opposite direction
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Physics, 18.10.2019 20:20, ethanh7755
Acurrent‑carrying wire lies in a region where there is an external magnetic field, but there is no magnetic force acting on the wire. how can this be? the wire itself is moving in the direction of the magnetic field at just the right speed. the magnetic field is generated by a second wire carrying a current in the opposite direction. the wire is a circular loop whose plane is oriented parallel to the magnetic field. the current is carried by equal numbers of positive and negative charges that flow in opposite directions along the wire. the length of the wire is oriented either parallel or antiparallel to the magnetic field lines at the location of the wire.
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Physics, 20.10.2019 19:00, belen27
Which of the following would a magnetic field not exert a force on? a stationary current carrying wire aligned at a 90 degree angle to the magnetic field a rotating current carrying wire in the shape of a rectangle a charge moving at a 180 degree angle to the magnetic field an electron beam angled at 45 degrees to the magnetic field
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