Question

Two long, parallel transmission lines, 42.0 cm apart, carry 24.0-A and 75.0-A currents.

A.) Find all locations where the net magnetic field of the two
wires is zero if these currents are in the same direction. Give
answer in cm. (Note: Assume that the positive *x* axis is
directed from the 75.0-A wire to the 24.0-A wire perpendicular to
the wires, with the origin on the 75.0-A wire)

B.) Find all locations where the net magnetic field of the two
wires is zero if these currents are in the opposite direction. Give
answer in cm. (Note: Assume that the positive *x* axis is
directed from the 75.0-A wire to the 24.0-A wire perpendicular to
the wires, with the origin on the 75.0-A wire)

Answer #1

Consider two long and parallel current carrying wires that are a
distance 3.00 m away from each other, and carrying 72.0 mA and 33.0
mA currents.
Assume that the origin of the coordinate system is on the 33.0
mA wire and its positive x axis is directed towards the 72.0 mA
wire that is perpendicular to the wires.
a.) If these currents are in the opposite direction, find all
locations where the net magnetic field of the two wires is...

Consider two long and parallel current carrying wires that are a
distance 5.00 mm away from each other, and carrying 77.0 mAmA and
35.0 mAmA currents.
Assume that the origin of the coordinate system is on the 35.0
mAmA wire and its positive xx axis is directed towards the 77.0
mAmA wire that is perpendicular to the wires.
a) If these currents are in the opposite direction, find all
locations where the net magnetic field of the two wires is...

Consider two long and parallel current carrying wires that are a
distance 7.00 m away from each other, and carrying 73.0 mA and 40.0
mA currents. Assume that the origin of the coordinate system is on
the 40.0 mA wire and its positive x axis is directed towards the
73.0 mA wire that is perpendicular to the wires.
Part C If these currents are in the opposite direction, find all
locations where the net magnetic field of the two wires...

Two long parallel wires 10.0 cm apart carry currents of 3.0 A
and 2.9 A in the same direction. Is there any point between the two
wires where the magnetic field is zero?
a.
yes, 4.9 cm from the 3.0-A wire
b.
no.
c.
yes, 5.1 cm from the 2.9-A wire
d.
yes, midway between the wires
e.
yes, 5.1 cm from the 3.0-A wire

As shown in the figure below, two long parallel wires (1 and 2)
carry currents of I1 = 3.32 A and I2 = 4.50 A in the direction
indicated. Two parallel wires point into the page. They are a
distance d apart from each other, with the left wire labeled I_1 at
the origin and the right wire labeled I_2 a distance d along the
positive x-axis. There is a point labeled P directly above wire I_1
a distance d...

Two long parallel wires which are 0.03 m apart carry equal
currents of 2.5 A. a) Calculate the net magnetic field at a point
midway between the two wires if their currents flow in the same
direction. Give magnitude and direction of Bnet. b) Calculate the
net magnetic field at a point midway between the two wires if the
currents flow in opposite direction. Give magnitude and direction
of Bnet. c) Calculate the magnitude of the magnetic force per meter...

The two wires shown in the figure carry currents of I = 4.08 A
in opposite directions and are separated by a distance of
d0 = 8.08 cm. Calculate the net magnetic field at a
point midway between the wires. Use the direction out of the page
as the positive direction and into the page as the negative
direction in your answer.Calculate the net magnetic field at point
P1 - that is 9.87 cm to the right of the wire...

The two wires shown in the figure carry currents of I = 4.08 A
in opposite directions and are separated by a distance of
d0 = 8.08 cm. Calculate the net magnetic field at a
point midway between the wires. Use the direction out of the page
as the positive direction and into the page as the negative
direction in your answer.Calculate the net magnetic field at point
P1 - that is 9.87 cm to the right of the wire...

Two long straight wires carry currents perpendicular to the
xy plane. One carries a current of 45 A and passes through
the point x = 5.5 cm on the x axis. The second
wire has a current of 80 A and passes through the point y
= 4.3 cm on the y axis. What is the magnitude of the
resulting magnetic field at the origin?

Two long straight wires are parallel and 8.4 cm apart. They are
to carry equal currents such that the magnetic field at a point
halfway between them has magnitude 240 µT. (a) Should the currents
be in the same or opposite directions? (b) How much current is
needed?

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