Magnetic Field Generated by Current in Straight Wire  Consider a eld point that is a distance from the axis of the wire
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Magnetic Field Generated by Current in Straight Wire Consider a eld point that is a distance from the axis of the wire

dB Idx sin Idx cos tan dx d cos r dB d cos cos 952d cos 952d sin sin Length of wire tan tan Wire of in64257nite length 90 90 960R 2632008 tsl216 316 brPage 2br Magnetic Field Generated by Current in Straight Wire 2 Consider a current in a straigh

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Magnetic Field Generated by Current in Straight Wire Consider a eld point that is a distance from the axis of the wire




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Presentation on theme: "Magnetic Field Generated by Current in Straight Wire Consider a eld point that is a distance from the axis of the wire"— Presentation transcript:


Page 1
Magnetic Field Generated by Current in Straight Wire (1) Consider a field point that is a distance from the axis of the wire. dB Idx sin Idx cos tan dx d cos /r dB d cos cos θd cos θd (sin sin Length of wire: (tan tan Wire of infinite length: 90 , = 90 πR 26/3/2008 [tsl216 3/16]
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Magnetic Field Generated by Current in Straight Wire (2) Consider a current in a straight wire of infinite length. The magnetic field lines are concentric circles in planes prependicular to the wire. The magnitude of the magnetic field at

distance from the center of the wire is πR The magnetic field strength is proportional to the current and inversely proportional to the distance from the center of the wire. The magnetic field vector is tangential to the circular field lines and directed according to the right-hand rule. 26/3/2008 [tsl217 4/16]
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Magnetic Field Generated by Current in Straight Wire (3) Consider the magnetic field in the limit (sin sin sin 1 + sin 1 + 1 + 26/3/2008 [tsl380 5/16]