PHYS 102 Lecture Notes - Electromagnet, Inverse-Square Law

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maroonmallard463

26 Jun 2012

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PHYS 102 Full Course Notes

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Imagine holding the wire carrying the current with your right hand, the thumb in the direction of the current. Your fingers will then give the sense of direction of the magnetic field b. A circle with a dot coming out of it is a vector pointing out of the plane. A circle with an x is a vector pointing into the plane. The simple right hand rule applies to many geometries including current in a loop: Determination of magnetic field strengths produced by electric. P (the current does not produce a field on: deltab ~ sin j itself. Phys 102 alanna houston: putting it all together, o, the proportionality constant (biot-savart law) o o, for a medium other than vacuum, we replace mu not by mu, the permeability of the medium. The direction of the b-field is determined directly by the right hand rule. The b-field at the centre of a circular current loop of radius r:

Related Questions

The right-hand rule is a way to determine the direction of the magnetic field produced by moving charges. Imagine wrapping your right hand around the path of the charges so that the positive charges (or the current) flow from the little finger side of your fist to the thumb side (Figure 8.53). Then your fingers circle the path in the same direction as the magnetic field lines. Use this rule to verify the directions of the magnetic fields shown in Figures 8.8 and 8.10. How would you use the rule to find the direction of the magnetic field lines around a moving negative charge?

sangriaclam240

The right-hand rule is a way to determine the direction of the magnetic field produced by moving charges. Imagine wrapping your right hand around the path of the charges so that the positive charges (or the current) flow from the little finger side of your fist to the thumb side. Then your fingers circle the path in the same direction as the magnetic field lines. Use this rule to verify the directions of the magnetic fields shown in Figure 8.53. How would you use the rule to find the direction of the magnetic field lines around a moving negative charge?