How do you find the magnetic field between two parallel wires?

To determine the net magnetic field midway between the two wires, we must determine the magnetic field as a result of each wire and then take the sum of those two vectors. Since the electric current runs in opposite direction in both wires, to determine the total magnetic field we need to subtract the two vectors.

What happens when two parallel wires carry an electric current in the same direction?

Thus, when two parallel wires carry current in the same direction, they exert equal and opposite attractive forces on each other. There will be no force, since the currents cancel. There will be an attractive force between the wires. There will be a repulsive force between the wires.

When the current is parallel to magnetic field?

Force on a current-carrying wire that is parallel to magnetic field will be zero. This is because the magnitude of force depends on the sin of the angle between the direction of current and the direction of magnetic field, so if the current carrying wire is held parallel to the magnetic field, the force will be zero.

Is magnetic field opposite current?

Since the wires are parallel to each other, the direction of the magnetic field is going to be perpendicular to the direction of current in the wire (see more detailed explanation in the Hint section). Magnetic field in which one of the wires is located is created by the other wire.

Why do the two parallel conductors carrying current?

Explain Why Two Current Carrying Parallel Conductors Attract. Ans: When the flow of the currents is in the same direction, the magnetic field will be opposite and the wires will attract.

When current is parallel?

In a parallel circuit, charge divides up into separate branches such that there can be more current in one branch than there is in another. Nonetheless, when taken as a whole, the total amount of current in all the branches when added together is the same as the amount of current at locations outside the branches.

Is the flow of electric current is parallel to the magnetic field?

If the flow of electric current is parallel to the magnetic field, the force will be? Sin(0) is zero, hence force is zero.

What is the magnetic field inside a wire?

The magnetic field inside a conductor with uniform current density J = I/πR2 can be found with Ampere’s Law. Inside the conductor the magnetic field B increases linearly with r. Outside the conductor the magnetic field becomes that of a straight conductor and decreases with radius.

What happens when two parallel wires are magnetically attracted?

So if you have two current-carrying, parallel wires with magnetic fields circling around them in the same direction, they will attract each other, as shown in the tutorial; at the point at which their respective magnetic fields intersect, they are traveling in opposite directions, and opposites attract.

Which way does current travel in a parallel circuit?

As a result, the current travels one way down one wire, and in the opposite direction down the second wire. You can change this to a parallel circuit by clicking on the radio button; in this scenario, the current forks when it reaches the parallel wires; some current goes down one of the wires, the rest down the second.

What is the force between two long straight and parallel conductors?

The force between two long, straight, and parallel conductors separated by a distance r can be found by applying what we have developed in the preceding sections. (Figure) shows the wires, their currents, the field created by one wire, and the consequent force the other wire experiences from the created field.

Why does the force between two wires define the ampere?

You might expect that two current-carrying wires generate significant forces between them, since ordinary currents produce magnetic fields and these fields exert significant forces on ordinary currents. But you might not expect that the force between wires is used to define the ampere.