Phy213: General Physics III 11/29/2020
Chapter 29 Worksheet 1
Biot-Savart Law
1. A straight wire horizontal wire, L=0.3 m, has a 1.5 A current running through it.
a. Using the Biot-Savart Law, derive the equation for the magnetic field vector produced by the
wire at an arbitrary point P, below the wire and halfway between the ends.
b. Determine the magnitude and direction of the magnetic field vector at point P=0.1 m below
the wire.
c. Determine the magnitude and direction of the magnetic field produced by the wire at a point
0.01 m to the left of point P.
d. Determine the magnitude and direction of the magnetic field at point P for a wire of
“infinite” length.
i = 1.5 A
y = .10 m
. P
L/2 L/2
