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Two parallel wires carry electric current in opposite directions the magnetic forces of the two wires are?
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∙ 13y ago
Repulsive
Wiki User
∙ 13y ago
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What is the relationship between the electric magnetic and wave velocity vectors?
The wave velocity vector is parallel to the cross product of the electric and magnetic vectors.If you crank a wood screw from the Electric-field direction to the Magnetic-field direction, the screw proceedsinto the wood in the direction of the wave's velocity vector.Here's another advanced and highly technical way to keep these directions straight ...Curl the fingers of your right hand in the direction FROM the electric vector TO the magnetic vector.Your right thumb (when extended) points in the direction of the waves velocity vector, and alsothe "Poynting Vector"; that's the direction in which the wave carries energy.
If two wires run parallel and the current passes through both wires in the same direction?
they attract if they go opposite directions they repel
You turn an electric dipole end for end in a uniform electric field.How does the work you do depend on the initial orientation of the dipole with respect to the field?
The work done by you to turn the electric dipole end for end in a uniform electric field depends on the initial orientation of the dipole with respect to the field. If the dipole is initially oriented such that its positive and negative charges are parallel to the electric field, then no net work is done as the electric field does not do any work on the dipole as the electric field lines do not transfer any energy. On the other hand, if the dipole is initially oriented such that its positive and negative charges are perpendicular to the electric field, then work is done by you to turn the dipole as the electric field exerts a force on the charges in the dipole in opposite directions, causing them to move in opposite directions. As a result, you have to do work to move the charges and turn the dipole.
What do you mean by uniform and non uniform magnetic fields?
In a uniform magnetic field the imaginary magnetic lines of force are parallel to each other. But in case of non uniform they are not parallel
How can you calculate parallel force?
Parallel forces are forces acting in parallel lines. If two parallel forces act in same direction, they are called like parallel forces. If two parallel forces act in opposite directions, they are called unlike parallel forces.
What happens to two parallel wires carrying electric current in opposite directions?
repel each other
What is meant by like and unlike parallel forces?
Like Parallel forces are the forces that are parallel to each other and have same direction. Unlike parallel forces are the forces that are parallel but have directions opposite to each other.
What is it called when DNA runs in opposite directions?
anti parallel
Why do two parallel conductors carrying current in the same direction attract each other while two parallel conductors carrying current in the opposite directions repel each other?
because of their magnetic field lines
What does antiparallel mean?
Anti-parallel means the sides of the DNA double helix.
What is a word that describes that the strands of DNA run in opposite directions?
Anti-parallel
Is a set of points forming a straight path extending infinitely in opposite directions?
parallel lines
What is the definition to paralles?
Two (or more) lines are parallel if they are pointing in the same (or exactly opposite) directions.
A magnetic field has a magnitude and an electric field has a magnitude both fields point in the same direction determine the magnitude of the net force that acts on the charge?
There are a few possibilities. First, if the charge q is at rest in the electric field E and magnetic field B, then only the electric field exerts a force because the charge must be moving for the magnetic field to exert a force. This electrostatic force is qE and its parallel to E if q is positive and antiparallel if q is negative. Second, if the charge is moving with velocity v ,the electric force is same as above. The magnetic force will now be qvBSin(A), Where A is the angle between the directions of B&v. If q is positive the direction of the magnetic force is perpendicular to the plane formed by B & v as found by curling the fingers of your right hand from v toward B. If q is negative its opposite the positive case. Notice; if v is parallel or antiparallel to B then Sin(0) or Sin(180) is zero and the magnetic force is zero. If v is perpendicular to B then Sin(90) =1 and the force is maximum. You always use the smallest angle A between the directions of B & v so it will never be greater then 180 deg. The Net force will then be the vector sum of these two forces. It would be a special case if qE & qvBSin(A) were parallel so you do have to pay attention to the directions when getting the vector sum. In your problem, if the charge is initially at rest then qE will cause it to accelerate parallel to E, which is also parallel to B, so there will never be a magnetic force. If, on the other hand, the charge moves into the fields with some velocity not parallel to the fields then you have to do the full analysis described above.
Why is it that 2 parallel wires carrying currents in opposite directions repel each other?
two wires carrying currents in opposite direction repel each other because the magnetic field between the wires is strong than on the sides of the wires.wires will move towards the weaker magnetic field from stronger field
What is a type of highway that has barriers or double-parallel lines separating traffic moving in opposite directions?
Divided Highway
What is a type of highway that has barriers or double parallel lines separating traffic moving in opposite directions?
Divided Highway
