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Electric currents and magnetic fields are by nature and by definition related to each other. In general, a magnetic field is created by the rotation of charge. If you imagine an electron following a circular path, a magnetic field would be created in the direction perpendicular to the plane of the circle.
On the other hand, electric current is defined as the flow of charge. So, an electron flowing along a wire results in current flow. This also means that the electron following a circular path (as above) creates an electric current along that same path.
If a circular flow of current results in a magnetic field perpendicular to the circle, what happens for current flow along a straight wire? Basically, we see a magnetic field which bends around the wire. Imagine exactly the reverse as before, with the magnetic field circling around the direction of current flow.
This basic relationship between electric current and magnetic fields results in some interesting interactions:
1. Many electromagnets work by the following principle: A coil of wire is made so that when voltage is applied the current will follow a circular path. As discussed above this circular movement of charge results in a magnetic field. In this case, you can imagine the direction of the magnetic field as the line through the center of the wire coil.
2. The Hall Effect: When current is applied across a conductive slab and a magnetic field is applied perpendicular to current flow, a voltage is generated in the third perpendicular direction. This occurs due to the interaction of the magnetic field generated by the flow of current and the applied magnetic field.
What else can I help you with?
The force that you exert on a lever is called The .?
Effort Force.
What do you call a force that you exert away from you?
Mass
What is the upward force that fluids exert on all matter?
bouyant force
What is the force you exert when using a machine?
input force/effort force In physics, the force that you apply to something over time is "work".
Why does iron attract to magnet?
Magnet are objects which have an electromagnetic force. It attracts iron and other metals which have the property of being induced by a magnets effect and repels other magnets.
How do electric currents and magnets exert forces on each other?
When an electric current flows through a conductor, it creates a magnetic field around it. This magnetic field can exert a force on nearby magnets or other currents. Similarly, a moving magnet can induce an electric current in a conductor, which also creates an interaction between the two. This phenomenon is described by the principles of electromagnetism.
What is true about electric currents and magnets?
Electric currents create magnetic fields, and magnets can also create electric currents if they are moved near a conductor. This relationship between electricity and magnetism is described by electromagnetism, a fundamental interaction in physics. Electromagnetic devices like electric motors and generators rely on this interaction to function.
What can magnets exert force from?
From the magnet.
Can an electric current exert a force on a magnet?
In a conductor - only if the field is moving, thus changing.
What do magnets and electric charges have in common?
produce a force that pushes and pulls
Do ocean currents have force?
No, because force isn't something you "have". You can have momentum, or velocity, or energy, or acceleration, but you can't "have" a force - you exert a force on something else. Ocean currents have momentum/kinetic energy, and so they do exert a force on the water around them, the air above them, and any other objects in them.
How does the interaction of magnetic fields and electric currents contribute to what makes a magnet work?
The interaction of magnetic fields and electric currents creates a magnetic force that aligns the atoms in a material, making it magnetic. This alignment allows the material to attract or repel other magnets, which is what makes a magnet work.
What is the difference between the electric field and the magnetic field?
The electric field is a force field that surrounds electric charges and exerts a force on other charges, while the magnetic field is a force field that surrounds magnets and moving electric charges, exerting a force on other magnets or moving charges.
How are magnets and motors related?
They both produce magnetic fields. So when together they attract.
Why does the magnet exert a force on another magnet when two magnets are not in contact?
because they love each other
How is Law of electric charge related to electric motor?
The Law of Electric Charge states that like charges repel and opposite charges attract. In an electric motor, this law is crucial for the operation of the motor. By applying electric currents to create magnetic fields, the motor uses the interaction of opposite charges to generate force and produce motion.
What do magnets exert on an iron rod?
Magnets exert a magnetic force on an iron rod, causing the iron to become magnetized and attract or repel other nearby magnetic objects. This force is a result of the alignment of the magnetic domains within the iron, creating a net magnetic field.
