a) A current path shaped as shown in Figure produces a magnetic field at P, the center of the arc. If the arc subtends an angle of 0=30.0° and the radius of the arc is R=0.400 m, what are the magnitude and direction of the field produced at P if the current is l=2.00 A? 30.0° b) A loop of a full circle of radius R=0.400 m carries a current of I=2.00 A. What is the magnitude of the magnetic field at its center? Hint: Magnitude of the magnetic field at point P (center of the arc) due to circular arc of radius R carrying a current of I and subtending an angle of 0 is: e (0 is in terms of radians, Ho= 4T x 107N.A²) B=- 4 AR

Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter22: Magnetic Forces And Magnetic Fields
Section: Chapter Questions
Problem 35P
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a) A current path shaped as shown in Figure
produces a magnetic field at P, the center of the arc. If the
arc subtends an angle of 0=30.0° and the radius of the arc
is R=0.400 m, what are the magnitude and direction of the
field produced at P if the current is l=2.00 A?
30.0°
b) A loop of a full circle of radius R=0.400 m carries a
current of I=2.00 A. What is the magnitude of the magnetic
field at its center?
Hint: Magnitude of the magnetic field at point P (center of the arc) due to circular arc of
radius R carrying a current of I and subtending an angle of 0 is:
e (0 is in terms of radians, Ho= 4T x 107N.A²)
B=-
4 AR
Transcribed Image Text:a) A current path shaped as shown in Figure produces a magnetic field at P, the center of the arc. If the arc subtends an angle of 0=30.0° and the radius of the arc is R=0.400 m, what are the magnitude and direction of the field produced at P if the current is l=2.00 A? 30.0° b) A loop of a full circle of radius R=0.400 m carries a current of I=2.00 A. What is the magnitude of the magnetic field at its center? Hint: Magnitude of the magnetic field at point P (center of the arc) due to circular arc of radius R carrying a current of I and subtending an angle of 0 is: e (0 is in terms of radians, Ho= 4T x 107N.A²) B=- 4 AR
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