What happens when current and magnetic field are in the same direction?
When the currents flow in the same direction the magnetic field will be opposite and the wires will attract. If electrons in both wires are moving in the same direction they see the same number of electrons in the other wire (because they are moving at the same speed.)
Does current flow in the same direction as magnetic field?
The magnetic field produced by an electric current is always oriented perpendicular to the direction of the current flow. Similar to the situation with electric field lines, the greater the number of lines (or the closer they are together) in an area the stronger the magnetic field.
What is the direction of magnetic field to magnetic field?
Magnetic field lines are defined to have the direction that a small compass points when placed at a location. (a) If small compasses are used to map the magnetic field around a bar magnet, they will point in the directions shown: away from the north pole of the magnet, toward the south pole of the magnet.
When current is moving in the same direction in two conductors then the force will be?
If the currents in both wires flow in the same direction, the forces acting on the two wires are attractive and they will move towards each other. Conversely, if the currents flow in the opposite directions, the forces will be repulsive and the wires will pull away.
How does current affect magnetic field?
Current is directly proportional to magnetic force for a straight current carrying conductor in a uniform magnetic field. So the force is directly proportional to the size of the current. If the current is increased by five times the force will also increase by five times.
How do you find the direction of force in a magnetic field?
The right hand rule states that: to determine the direction of the magnetic force on a positive moving charge, ƒ, point the thumb of the right hand in the direction of v, the fingers in the direction of B, and a perpendicular to the palm points in the direction of F.
What is the force per unit length f l between the two wires?
F/l is the force per unit length between two parallel currents I1 and I2 separated by a distance r. The force is attractive if the currents are in the same direction and repulsive if they are in opposite directions. This force is responsible for the pinch effect in electric arcs and plasmas.
Which is the direction of the magnetic field?
The magnetic field lines around a long wire which carries an electric current form concentric circles around the wire. The direction of the magnetic field is perpendicular to the wire and is in the direction the fingers of your right hand would curl if you wrapped them around the wire with your thumb in the direction of the current.
How is magnetic field related to right hand rule?
Simply stated, the Right Hand Rule says that the magnetic field lines produced by a current-carrying wire will be oriented in the same direction as the curled fingers of a person’s right hand (in the “hitchhiking” position), with the thumb pointing in the direction of the current flow.
How to find the relationship between current and magnetic field?
There is a simple method of finding the relationship between the direction of the current flowing in a conductor and the direction of the magnetic field around the same conductor. The method is called the Right Hand Rule.
How is the H-field of a magnet determined?
The magnetic field intensity (H-field) is how the B-field exists within a magnetic material (such a magnet). The H-field is given by: In a vacuum, B = H (the two are indistinguishable), but in magnetic materials, such as a magnet, the two are different and can even point in different directions.