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How can it be shown that a magnetic field exists around a wire through which a direct current is passing?
Wiki User
∙ 10y ago
Take 1/4 in bolt that is 2 to 4 inches long and wrap it with 20 to 50 windings of small guage insulated wire, hook up each end to the terminals on a small 9 volt transister battery. Hold or move the bolt under a piece of paper that has a sprinkling of iron filings on it. The filings will align to the magnet lines of flux.
Wiki User
∙ 12y ago
Wiki User
∙ 12y agoIf the current is DC, then you'll see the effect by simply bringing a small compass
near the wire. If the current is AC, it'll take a more complicated detection strategy,
since the current is reversing its direction 100 or 120 times every second, and the
compass can't keep up with that so it does nothing unusual.
Wiki User
∙ 12y agoWhen current is flowing, putting a compass over the wire will cause the compass needle to line up at right angles to the wire. See the related link below.
Wiki User
∙ 10y agoIf we place a compass needle near current carrying wire and it gets deflected, it will show that there is a magnetic field around the wire.
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Does coil of wire with current passing through it magnetise a piece of iron?
yes it does the current flows in a wire it creates a magnetic field around the wire.
What happens when electric current passes through a coil of wire?
A magnetic field generates around the wire.
What can decrease the magnetic field around a wire?
Only decreasing the magnitude of the current flowing through the wire can.
How does changing current affect the magnetic force on a wire suspended in a magnetic field?
Current passing through a wire in a magnetic field creates its own magnetic force in some direction. If you increase the current, force will be increased. If the direction of current is changed, direction of force will also be reversed. Direction of current is found by applying right hand rule.
How do you know when a wire has current flowing through it?
You can measure with a multimeter. Alternately, you can check for a magnetic field around the wire.You can measure with a multimeter. Alternately, you can check for a magnetic field around the wire.You can measure with a multimeter. Alternately, you can check for a magnetic field around the wire.You can measure with a multimeter. Alternately, you can check for a magnetic field around the wire.
Does coil of wire with current passing through it magnetise a piece of iron?
yes it does the current flows in a wire it creates a magnetic field around the wire.
What is the relationship between electricity and magnetism with an electromagnet?
Oesterd discovered that when an electric current flows through a conductor a magnetic field develops around the conductor. So when you switch on the electromagnet a current passes through a solenoid generating a magnetic field which can be controlled by either forming more or less loops or increasing/decreasing the amount of current passing through the solenoid.
What is formed around a conductor when a current is passed through it?
A magnetic field.
What causes a magnetic field to be produced around a wire?
Current flows through a wire and produces a magnetic field.
Will magnetic field is produced when current is passed through a thick conducting sheet?
Yes,,,a current carrying conductor wil produce magnetic field around it.
What causes a magnetic field to be set up around a wire?
Passing an electric current through a wire will produce an external magnetic field. This is because the electrons have spin and this spin is what produces the field. Spinning electrons (of certain characteristics) also produce the magnetic field of permanent magnets. And no spinning electrons, no magnetic field.
What is made coiling wire around iron and passing an electric current through it?
Electromagnet.
What is the relationship between magnetic fields and electricity?
-- A current flowing through a conductor creates a magnetic field around the conductor. -- Moving a conductor through a constant magnetic field creates a current in the conductor. -- If there's a conductor sitting motionless in a magnetic field, a current flows in the conductor whenever the strength or direction of the magnetic field changes.
A device that produces a magnetic field by an electric current?
Any device with an electrical current will create a magnetic field. A tube of wire coils with a current running through it is called a solenoid and it will produce a magnetic field through the inside of the tube, as well as around it... Sorry, not much for physics.
How electric current causes magnetic field around conductor?
Electric current causes magnetic field around conductor by producing a moving electric charges and the intrinsic magnetic moments of an elementary particles that is associated with a fundamental quantum property.
How can it be shown that a magnetic field exist around a wire though which a direct electric current is passing?
The magnetic field can easily be detected with a permanent magnet that is free to move - for example a compass (which has a magnetic needle), or a magnet hanging on a string.
What is the principle of electromagnetism?
pricinples of electromagnetism state that when current passes through a piece of wire magnetic field is generated around the piece of wire and when a piece of wire passes through the magnetic field current is induced into the piece of wire
