Question

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

(e) There is no force between the wires

Answer #1

This problem can be solved in the following way.

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,
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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
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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

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

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...

Two long straight current-carrying wires run parallel to each
other. The current in one of the wires is 4.9 A, their separation
is 3.6 cm and they repel each other with a force per unit length of
2.5 10-4 N/m.
(a) Determine the current in the other wire.____ A
(b) Determine if the currents are in the same or opposite
direction.
(c) Determine what will happen if the direction of one current
is reversed and tripled. (Select all that apply.)...

1 a.)Two wires are running parallel to one another 0.4m apart.
If the current in the wire 1= 1000 amps and the current in wire 2 =
3400 amps.
What will be the magnitude of the force on a section of wire 2
that is 10m long?
b.) In which region (above, in between and/or below) does the
magnetic field from each wire point in the same direction?

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?

(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...

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....

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