Question

Two long, parallel wires separated by 2.80 cm carry currents in opposite directions. The current in one wire is 1.30 A, and the current in the other is 3.35 A.

(a) Find the magnitude of the force per unit length that one
wire exerts on the other.

(b) Is the force attractive or repulsive?

attractiverepulsive

Answer #1

a) Two long, parallel wires are separated by a distance 3.00 cm
and are repelling each other with a force per unit length of
2.00×10−5 Nm−1 . If a current of 0.600 A is
flowing along one wire, what is the current in the other wire? Are
the currents flowing in the same directions or in opposite
directions?
b) Two long, parallel wires are hanging by regularly spaced,
4.00 cm long cords from a common axis. The wires have a...

Two long, parallel wires are separated by a distance of 2.80 cm
. The force per unit length that each wire exerts on the other is
3.40×10−5 N/m , and the wires repel each other. The
current in one wire is 0.520 A .
a) What is the current in the second wire?

Two
parallel wires, 5mm apart, carry currents of 100 A and 140 A
respectively, in opposite directions. The force per unit length in
N/m of one wire on the other is:

Wires carrying current can attract or repel each other. two
wires are parallel but carry current in opposite directions.
I1 = 5 A,
I2 = 8 A
Distance between wires = 30 cm
Find the force per unit length on either wire
A.) 3.4 x 10^-5 N attractive
B.) 2.7 x 10^-5 N repulsive
C.) 2.7 x 10^-5 N attractive
D.) 7.2 x 10^-5 N repulsive
E.) 7.2 x 10^-5 N attractive

Consider two very long conducting parallel wires carry currents
in opposite directions such that one is triple of the other. The
distance between wires is 30 cm. The magnetic field at points on a
line between the wires, and at a distance of 5 cm from the wire
carrying the smaller current, is 2.5×10-5 T. a) Draw a diagram of
the situation. Assume the wires are placed in the x-direction. Draw
the direction of the magnetic field at points on...

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?

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...

Two long parallel wires separated by 1.2 cm experience a force
per unit length of 0.5 N/m. One wire carries a current of 137 A.
What current does the other wire carry?

Two long, parallel wires are separated by 2.6 mm. Each wire has
a 32-AA current, but the currents are in opposite directions.
a. Determine the magnitude of the net magnetic field midway
between the wires.
b. Determine the magnitude of the net magnetic field at a point
1.3 mm to the side of one wire and 3.9 mm from the other wire. The
point is in the same plane as the wires.

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?

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