Question

Two long parallel wires are placed 2 cm apart on a horizontal table. Wire 1 carries a current of 560 mA to the right while Wire 2 carries a current of 320 mA to the left.

a) Do the wires attract or repel each other?

b) What is the magnetic field due to Wire 1 at Wire 2’s position?

c) What is the magnitude of the force exerted on Wire 2 due to Wire 1?

d) Is the force in part (c) greater than, less than, or equal to the magnitude of the force exerted on Wire 1 by Wire 2?

Answer #1

Two long parallel wires are 4.0 cm apart. Each wire carries the
current 10 A in the same direction. Find the magnetic field halfway
between the wires.

Two long, straight, parallel wires carry current. The first wire
carries I1 = 3 A to the right and the second carries I2 = 5 A to
the left. The force per length each wire exerts on the other is of
magnitude 5 × 10−6 N/m.
(a) Sketch the situation. On your sketch indicate the directions
of the magnetic fields produced by each wire and the direction of
the force exerted on each wire. Determine the distance between the
wires....

(a) Consider two parallel wires running 2 cm apart. Each wire
carries a current of 10 A
running in the same direction. Sketch the set-up and calculate
the magnitude
of the force per unit length between the wires. Indicate the
direction of the forces
acting on the wires in your sketch.
(b) Consider that this experimental set-up was used to
originally define a current of 1 A in magnitude,
i.e a current of 1 A corresponds to the current that...

(a) Consider two parallel wires running 2 cm apart. Each wire
carries a current of 10 A running in the same direction (such a
current is of the order of a large household current to power
electrical devices). Sketch the set-up and calculate the magnitude
of the force per unit length between the wires. Indicate the
direction of the forces acting on the wires in your sketch.
(b) If you are surprised by the round number consider that this
experimental...

Consider two parallel wires placed a distance of 19.5 cm apart.
The current in the first wire is 10.5A and the current in the
second wire is 22.25A. If the currents are in opposite directions,
find the magnitude of the combined magnetic field at the midpoint
between the two wires. Calculate the answer in micro-tesla (µT) and
rounded to three significant figures

Two 1-meter long vertical, parallel wires 12.5 cm apart each
carry a current. The first wire carries 31 Amps upward. If it
exerts an attractive force of 5.1 x 10- 4 N on the second wire,
what is the magnitude and direction of the current in the second
wire?

Two long wires parallel to the page carry currents. Wire 1 =
1.5A and wire 2 = 1.1A and they are 1.8cm apart. Point P is 2.3 cm
to the right of wire 2. What is the magnitude and direction of the
magnetic field at P? A compass is placed at P, in which direction
does the north needle point?

Two wires. 1 m long, 5.0 cm apart carry a current of 10 amps in
the same direction
(a) The wires attract each other with a force on each wire of
4x10-4 N
(b) The wires repel each other with a force on each wire of
5x10-4 N
(c) The wires attract each other with a force on each wire of 5
x10-4 N
(d) The wires repel each other with a force on each wire of 4
x10-4 N...

Consider two long straight
wires parallel to each other. The wire A on the left has a
current of I1= 3 A and is separated by 5 m from the wire
B on the right that carries I2= 2 A of current. The currents
are flowing in the same direction as in the figure.
a) Consider a point P that is 2 m to the right of wire B.
Determine the magnitude including unit and direction of
the magnetic field...

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...

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