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If a long straight wire is aligned northsouth and carries current in the northerly direction What is the direction of the magnetic field created directly above the wire?
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∙ 12y ago
east
Wiki User
∙ 12y ago
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Why compass neddle show north side always?
A compass needle is attracted to the Earth's magnetic field, which aligns it with the magnetic north pole. This causes the needle to always point in a northerly direction.
Why Do transverse magnetic mode has no magnetic line is in direction of propagation?
No. It has. Since transverse electric mode has it's wave propagating in the Z direction, and has magnetic field existing in the same direction with NO electric field... Likewise, transverse magnetic mode has it's wave propagating in the Z direction and has electric field existing in the same direction with NO magnetic field.
Could a magnetic field be electrons flowing through power lines?
A magnetic field is caused by flowing currents, but the field lines are not directly related to the flow of electrons or other charged particles. They are simply an abstraction that tells you where the magnetic attraction is strongest, and in what direction it goes.
What is the 3 things that oersted discovered about the relationship between electricity and magnetism?
Oersted discovered that an electric current produces a magnetic field, that the magnetic field direction is perpendicular to the current flow, and that the strength of the magnetic field is directly proportional to the current flowing through the conductor.
What change do you think there would be in the magnetic fied if the current went down instead of up the wire?
If the current direction in the wire changes from going up to going down, the direction of the magnetic field around the wire will reverse. This is governed by the right-hand rule, where the direction of the magnetic field is perpendicular to the direction of current flow. Overall, the magnitude of the magnetic field would remain the same, but its direction would be opposite.
In north America a manetic compass will point to?
It points in a northerly direction towards the North Magnetic Pole (which is close to, but not the same as the North Pole)
What direction do compasses point in the southern hemisphere?
In the Southern Hemisphere, compasses still point towards magnetic north. The difference is that magnetic north is located in the Northern Hemisphere, so compasses in the Southern Hemisphere will point in a northerly direction.
What is magnetic field produced by a current flowing through a wire?
A current flowing through a wire produces a magnetic field around the wire. The direction of the magnetic field is determined by the right-hand rule, where if you point your thumb in the direction of the current, your fingers will curl in the direction of the magnetic field lines. The strength of the magnetic field is directly proportional to the current flowing through the wire.
Which is not a property of magnetic field lines?
Magnetic field lines do not have physical existence or substance; they are a visual representation of the magnetic field direction and strength. They are not tangible lines that can be touched or seen.
What is relationship exists between the magnetic force and current through conductor?
The magnetic force experienced by a current-carrying conductor is directly proportional to the magnitude of the current flowing through it. This relationship is described by the right-hand rule for magnetic fields, where the direction of the force on the conductor can be determined by pointing the thumb of your right hand in the direction of the current and the fingers in the direction of the magnetic field.
What shows up a magnetic field?
A magnetic field is typically detected by observing its effects on magnetic materials such as iron filings or compass needles. Additionally, instruments like magnetometers can directly measure the strength and direction of a magnetic field.
Creates a magnetic field?
When an electric current flows through a conductor, it creates a magnetic field around the conductor. This phenomenon is described by the right-hand rule, where the direction of the magnetic field is determined by the direction of the current flow. The strength of the magnetic field is directly proportional to the amount of current flowing through the conductor.
In an electromagnet why is changed by flipping the direction of the electrons which is controlled by the commutator?
Changing the direction of the current in the electromagnet by flipping the direction of the electrons through the commutator changes the direction of the magnetic field generated by the electromagnet. This is because the magnetic field produced by a current-carrying wire is directly related to the direction of the current flow. By reversing the current direction, the polarity of the magnetic field is also reversed, which allows for control over the attractive or repulsive forces exerted by the electromagnet.
Why compass neddle show north side always?
A compass needle is attracted to the Earth's magnetic field, which aligns it with the magnetic north pole. This causes the needle to always point in a northerly direction.
How does the strength of a magnetic field around a wire vary?
The strength of a magnetic field around a wire is directly proportional to the current flowing through the wire. Increasing the current flow increases the strength of the magnetic field, while increasing the distance from the wire decreases the strength of the magnetic field. This relationship follows the right-hand grip rule, where the direction of the magnetic field is determined by the direction of the current flow.
What is the direction of magnetic filed lines?
The direction of magnetic field lines are from north to south
How do you reverse the direction of a magnetic field?
You can reverse the direction of a magnetic field by changing the direction of the electric current flowing through a conductor. This is known as the right-hand rule - if you pass your right-hand thumb in the direction of the current flow, your fingers will curl in the direction of the magnetic field. By reversing the direction of the current, you can reverse the direction of the magnetic field.
