Two wires lay parallel to each other in the x-y plane so that they both carry...
Two wires lay parallel to each other in the x-y plane so that they both carry currents directed in the +y direction. Both currents are positive, but are of unknown magnitude. Let us divide the x-y plane into three regions, as shown in the figure below: (I) To the left of both wires (II) In between the two wires (III) To the right of both wires Which of the following statements about the magnetic field direction due to these currents is correct? Both I1 and I2 are pointing up. Region 1 is before I1 and region 2 is in between I1 and I2 and region 3 is after I2.
Choose the correct answer:
In Region (II), the magnetic field COULD point into the page (-z direction) in some locations
In Region (III), the magnetic field MUST point into the page (-z direction) everywhere
In Region (II), the magnetic field COULD be zero at some locations.
In Region (II), the magnetic field COULD point out of the page (+z direction) in some locations
All of these statements are correct
n Region (I), the magnetic field MUST point out of the page (+z direction) everywhere
Homework Answers
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Two wires lay parallel to each other in the x-y plane so that
they both carry...
Two long, parallel wires carry currents of I1 = 16.0 A and I2 = 8.0 A...
Two long, parallel wires carry currents of
I1 = 16.0 A and I2 = 8.0 A
in opposite directions (see figure below). Which of the following
statements must be true? More than one statement may be
correct.
a) In region I, the magnetic field is into the page and is never
zero.
b) In region II, the field is into the page and can be zero.
c) In region III, it is possible for the field to be zero.
d)...
Four long straight parallel wires are oriented perpendicular to the x-y plane and carry currents I1,...
Four long straight parallel wires are oriented perpendicular to
the x-y plane and carry currents I1, I2,
I3 and I4. The magnitudes of the currents are
all identical and equal to 4.015 A. Current I3 is into
the x-y plane (i.e. into the screen), whereas each of the other
three currents are all out of the x-y plane(i.e. out of the screen)
as shown below. Each of the wires is a distance of 2.987 cm from
the origin as measured...
Four long straight parallel wires are oriented perpendicular to the x-y plane and carry currents I1,...
Four long straight parallel wires are oriented perpendicular to
the x-y plane and carry currents I1, I2,
I3 and I4. The magnitudes of the currents are
all identical and equal to 8.475 A. Current I4 is into
the x-y plane (i.e. into the screen), whereas each of the other
three currents are all out of the x-y plane(i.e. out of the screen)
as shown below. Each of the wires is a distance of 6.105 cm from
the origin as measured...
Two parallel long (infinite for our purposes) wires are oriented along the z-axis. The figure below...
Two parallel long (infinite for our purposes) wires are oriented
along the z-axis. The figure below shows the
(xy)-plane perpendicular to the wires, including
the positions where the wires cross this plane. The wires carry
some unknown electric currents I1 and
I2, which you need to find from a
single measurement of the magnetic field
B=Bxi
+
Byj
at point A, whose position in the plane is also indicated. We will
treat the currents algebraically: the current I
is positive...
Two parallel long (infinite for our purposes) wires are oriented along the z-axis. The figure below...
Two parallel long (infinite for our purposes) wires are oriented
along the z-axis. The figure below shows the
(xy)-plane perpendicular to the wires, including
the positions where the wires cross this plane. The wires carry
some unknown electric currents I1 and
I2, which you need to find from a
single measurement of the magnetic field
B=Bxi
+
Byj
at point A, whose position in the plane is also indicated. We will
treat the currents algebraically: the current I
is positive...
Two parallel long (infinite for our purposes) wires are oriented along the z-axis. The figure below...
Two parallel long (infinite for our purposes) wires are oriented
along the z-axis. The figure below shows the
(xy)-plane perpendicular to the wires, including
the positions where the wires cross this plane. The wires carry
some unknown electric currents I1 and
I2, which you need to find from a
single measurement of the magnetic field
B=Bxi
+
Byj
at point A, whose position in the plane is also indicated. We will
treat the currents algebraically: the current I
is positive...
Two parallel long (infinite for our purposes) wires are oriented along the z-axis. The figure below...
Two parallel long (infinite for our purposes) wires are oriented
along the z-axis. The figure below shows the
(xy)-plane perpendicular to the wires, including
the positions where the wires cross this plane. The wires carry
some unknown electric currents I1 and
I2, which you need to find from a
single measurement of the magnetic field
B=Bxi
+
Byj
at point A, whose position in the plane is also indicated. We will
treat the currents algebraically: the current I
is positive...
Two long, parallel transmission lines, d = 40.0 cm apart, carry I1 = 25.0 A and...
Two long, parallel transmission lines, d = 40.0 cm apart, carry
I1 = 25.0 A and I2 = 75.0 A.
Don't do part A, only parts D-F.
2. Two long, parallel transmission lines, d = 40.0 cm apart, carry 11 = 25.0 A and 12 = 75.0 A. We are to find all locations where the net magnetic field due to the two wires is zero if these currents are in: i) the same direction and ii) the opposite direction....
PLEASE HELP!!! 8. Two long, parallel wires each carry a current I in the same direction...
PLEASE HELP!!!
8. Two long, parallel wires each
carry a current I in the same direction as shown in the figure. The
magnetic field at the point P, midway between the two wires is
________.
zero
directed into the page
directed out of the page
parallel to the wires in the same direction as the
current.
parallel to the wires, in the opposite direction as the
current.
9. A long, straight wire carries a current of 20A to the right....
Two infinitely long, straight parallel wires perpendicular to the plane of the page carry currents of...
Two infinitely long, straight parallel wires perpendicular to the plane of the page carry currents of l1 = 1.5 A and I2 = 3 A in opposite directions. The smallest distance between the wires is d = 10 cm. Which direction matches the direction of the B-field at a point P midway between the wires?
Two long, parallel wires carry currents of
I1 = 16.0 A and I2 = 8.0 A
in opposite directions (see figure below). Which of the following
statements must be true? More than one statement may be
correct.
a) In region I, the magnetic field is into the page and is never
zero.
b) In region II, the field is into the page and can be zero.
c) In region III, it is possible for the field to be zero.
d)...
Four long straight parallel wires are oriented perpendicular to
the x-y plane and carry currents I1, I2,
I3 and I4. The magnitudes of the currents are
all identical and equal to 4.015 A. Current I3 is into
the x-y plane (i.e. into the screen), whereas each of the other
three currents are all out of the x-y plane(i.e. out of the screen)
as shown below. Each of the wires is a distance of 2.987 cm from
the origin as measured...
Four long straight parallel wires are oriented perpendicular to
the x-y plane and carry currents I1, I2,
I3 and I4. The magnitudes of the currents are
all identical and equal to 8.475 A. Current I4 is into
the x-y plane (i.e. into the screen), whereas each of the other
three currents are all out of the x-y plane(i.e. out of the screen)
as shown below. Each of the wires is a distance of 6.105 cm from
the origin as measured...
Two parallel long (infinite for our purposes) wires are oriented
along the z-axis. The figure below shows the
(xy)-plane perpendicular to the wires, including
the positions where the wires cross this plane. The wires carry
some unknown electric currents I1 and
I2, which you need to find from a
single measurement of the magnetic field
B=Bxi
+
Byj
at point A, whose position in the plane is also indicated. We will
treat the currents algebraically: the current I
is positive...
Two parallel long (infinite for our purposes) wires are oriented
along the z-axis. The figure below shows the
(xy)-plane perpendicular to the wires, including
the positions where the wires cross this plane. The wires carry
some unknown electric currents I1 and
I2, which you need to find from a
single measurement of the magnetic field
B=Bxi
+
Byj
at point A, whose position in the plane is also indicated. We will
treat the currents algebraically: the current I
is positive...
Two parallel long (infinite for our purposes) wires are oriented
along the z-axis. The figure below shows the
(xy)-plane perpendicular to the wires, including
the positions where the wires cross this plane. The wires carry
some unknown electric currents I1 and
I2, which you need to find from a
single measurement of the magnetic field
B=Bxi
+
Byj
at point A, whose position in the plane is also indicated. We will
treat the currents algebraically: the current I
is positive...
Two parallel long (infinite for our purposes) wires are oriented
along the z-axis. The figure below shows the
(xy)-plane perpendicular to the wires, including
the positions where the wires cross this plane. The wires carry
some unknown electric currents I1 and
I2, which you need to find from a
single measurement of the magnetic field
B=Bxi
+
Byj
at point A, whose position in the plane is also indicated. We will
treat the currents algebraically: the current I
is positive...
Two long, parallel transmission lines, d = 40.0 cm apart, carry
I1 = 25.0 A and I2 = 75.0 A.
Don't do part A, only parts D-F.
2. Two long, parallel transmission lines, d = 40.0 cm apart, carry 11 = 25.0 A and 12 = 75.0 A. We are to find all locations where the net magnetic field due to the two wires is zero if these currents are in: i) the same direction and ii) the opposite direction....
PLEASE HELP!!!
8. Two long, parallel wires each
carry a current I in the same direction as shown in the figure. The
magnetic field at the point P, midway between the two wires is
________.
zero
directed into the page
directed out of the page
parallel to the wires in the same direction as the
current.
parallel to the wires, in the opposite direction as the
current.
9. A long, straight wire carries a current of 20A to the right....
Two infinitely long, straight parallel wires perpendicular to the plane of the page carry currents of l1 = 1.5 A and I2 = 3 A in opposite directions. The smallest distance between the wires is d = 10 cm. Which direction matches the direction of the B-field at a point P midway between the wires?
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