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Why is the magnetic field strngth inside a current carrying loop of wire greater than a strraight section?
A looped wire would have a stronger magnetic field because a looped wire is closer to the magnet all the way aroud.
How can electric currents and magnets exert force on each other?
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 condition will sinusoidal voltage be generated in a coil of wire that rotates in a magnetic field?
a generator or alternator,if the magnetic is permanent the current produced from the coil will be alternating current ac.
Is there a magnet in an electromagnet?
An electromagnet is a type of magnet in which the magnetic field is produced by the flow of electric current. The magnetic field disappears when the current ceases. Take a look at this Wikipedia page for more information: http://en.wikipedia.org/wiki/Electromagnet
What repels magnets and what attracts magnets?
A. An aluminum wire carrying current B. An electromagnet C. An iron horseshoeA. A copper wire carrying current B. An iron horseshoe D. A steel paper clip
How will you describe the magnetic field around a straight current-carrying wire?
the magnetic field gets stronger with increasing distance from the wire
What terms correctly describes the shape of the magnetic field around a long straight current-carrying wire?
The shape of the magnetic field around a long straight current-carrying wire is generally described as concentric circles perpendicular to the wire.
What is the shape of magnetic lines force in case of a straight current carrying conductor?
The shape of the magnetic field lines around a straight current-carrying conductor is circular, with the conductor at the center of each circular loop. These magnetic field lines form concentric circles around the conductor, perpendicular to the direction of the current flow.
What type of current does a straight current carrying wire produce?
A straight current-carrying wire produces a magnetic field around it, which can be described as a circular magnetic field perpendicular to the direction of current flow. This magnetic field is responsible for creating a force on any nearby moving charges.
How would you describe the magnetic field produced by a current in a straight wire?
Yes. It depends on its resistivity
Suppose that you're facing a straight current-carrying conductor and the current is flowing toward you. The lines of magnetic force at any point in the magnetic field will act in?
A clockwise direction
Why is the magnetic field strength greater inside a current carrying wire than about a straight section of wire?
The magnetic field strength is greater inside a current-carrying wire because the magnetic field lines produced by the current are concentrated within the wire due to the close proximity of the electric charges moving through it. In contrast, around a straight section of wire, the magnetic field lines spread out into the surrounding space, resulting in a weaker magnetic field intensity.
What is the direction of the magnetic field around a current-carrying wire?
The magnetic field around a current-carrying wire is circular and perpendicular to the direction of the current flow.
How does a magnetic field impact a current-carrying wire?
A magnetic field can exert a force on a current-carrying wire, causing it to move or experience a torque. This is known as the magnetic force on a current-carrying conductor, according to the right-hand rule.
In what direction is a force exerted on a current-carrying wire when it is placed in a magnetic field?
The force exerted on a current-carrying wire placed in a magnetic field is perpendicular to both the direction of the current and the magnetic field.
Describe what happens when you hold a compass close to a wire carrying a current?
When a compass is held close to a wire carrying a current, the magnetic field produced by the current will deflect the compass needle. This happens because a magnetic field is generated around the wire due to the flow of current, and the compass needle aligns itself with this magnetic field. The deflection of the compass needle can be used to determine the direction of the current in the wire.
When is the force on a current carrying wire in a magnetic field at its strongest?
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