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What happens to the needle of a compass as a wire carrying electric current is placed across it?
The needle of a compass will deflect from its original position when a wire carrying an electric current is placed across it. This is due to the magnetic field created by the current in the wire, which interacts with the magnetic field of the compass needle, causing it to move.
What happens to a current-carrying wire when placed in a magnetic field?
When a current-carrying wire is placed in a magnetic field, a force is exerted on the wire due to the interaction between the magnetic field and the electric current. This force causes the wire to move or experience a deflection, depending on the orientation of the wire and the magnetic field.
What happens if the compass is placed under the wire?
Placing a compass under a current-carrying wire can cause the needle to deflect due to the magnetic field produced by the electric current. This phenomenon, known as the right-hand rule, demonstrates the relationship between electric current and magnetic fields.
What happens When a wire with a current is placed in a magnetic field?
electricity is induced
What happens when a wire placed within a magnetic field?
Electric current is produced.Nothing until it is moved at right angles{90 degrees) to the magnetic field between it's poles. The faster it moves the larger the voltage measured between the ends of the wire.
What happens to a magnetic domains of a piece of iron when it is placed in a magnetic field?
They all end up going in different directions so that it is magnetic anymore.
What can be placed inside a coil of wire to increase the magnetic effects of that coil of wire when electricity is applied?
A ferromagnetic material, such as iron or steel, can be placed inside a coil of wire to increase the magnetic effects when electricity is applied. This is because the ferromagnetic material enhances the magnetic field produced by the coil due to its high magnetic permeability.
How does an electric current in a wire deflect with electricity and magnetism?
When an electric current flows through a wire, it creates a magnetic field around the wire. If this wire is placed in the presence of another magnetic field, the two fields can interact, causing the wire to deflect. This phenomenon is known as the magnetic deflection of an electric current.
Who discovered magnetic field of electric current?
Hans Christian Oersted discovered the magnetic field of electric current in 1820. He observed that a compass needle was deflected when placed near a wire carrying an electric current, showing a relationship between electricity and magnetism.
How does a square wire loop behave when placed in a time-varying magnetic field?
When a square wire loop is placed in a time-varying magnetic field, an electric current is induced in the loop. This current creates a magnetic field that opposes the change in the original magnetic field, leading to a phenomenon known as electromagnetic induction.
Does charge inside a conductor exert electric field on another charge placed outside the conductor?
Yes, the charges inside a conductor will rearrange when an external charge is placed near or on the surface of the conductor, resulting in an induced electric field inside the conductor. This induced electric field will influence the external charge's behavior without the need for direct contact between the charges.
Why does the electric field inside a dielectric decrease when it is placed in an external electric field?
The net electric field inside a dielectric decreases due to polarization. The external electric field polarizes the dielectric and an electric field is produced due to this polarization. This internal electric field will be opposite to the external electric field and therefore the net electric field inside the dielectric will be less.
