Biot-Savart
November-09-12
11:56 AM
Find the magnitude and direction of the magnetic field due
to a straight segment of wire carrying a constant current I.
Chapter 30 Page 1
B Loop & Wire
November-21-12
10:20 AM
A circular loop has radius R and carries current I in the
clockwise direction. Find the position for a long straight wire
also carrying current I such that the magnetic field at the
center of the loop is zero.
Chapter 30 Page 2
B inside wire
November-27-12
7:35 AM
A long cylindrical conductor of radius R carries a steady
current I that is uniformly distributed across the cross section
of the wire. Calculate the magnetic field a distance r from the
center of the wire in the regions r>R and r<R.
Chapter 30 Page 3
B nonuniform current density
November-27-12
7:53 AM
A long cylindrical conductor of radius R has a
nonuniform current density given by J=(5A/m3 )r2.
Find the magnetic field for r<R and r>R.
Chapter 30 Page 4
B coaxial cable
November-27-12
8:07 AM
A coaxial cable consists of an inner conductor carrying
current I1 surrounded by an outer conductor of inner
radius a and outer radius b carrying current I 2. Find the
magnetic field for r<a, a<r<b, and r>b if I 1 is in the
opposite direction to I2.
Chapter 30 Page 5
Flux thru loop
November-27-12
6:37 PM
A rectangular loop of width a and length b is located near a
long wire carrying a current I. The distance between the wire
and the closest side of the loop is c. The wire is parallel to the
long side of the loop. Find the total magnetic flux through the
loop due to the current in the wire.
Chapter 30 Page 6
B flux thru box
November-28-12
10:35 AM
A cube of edge length 2.5cm is positioned on the coordinate
axes. A magnetic field given by B=3xi+4j+5k exists
throughout the region. Calculate the magnetic flux through
the right hand face of the cube.
Chapter 30 Page 7