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How alternating voltage is generated in a coil of wire when it is rotated between the poles of a magnet?
Electical current.=============================Answer #2:When a coil moves in the vicinity of a magnet, a voltage between the endsof the coil is produced. If the coil happens to be part of a closed circuit, thenthere could be an electrical current.Answer #3When a coil moves through a changing magnetic field, a voltage is produced, and when a resistor is connected to the coil some current flows and power is produced in the resistor. This power comes from the mechanical power needed to push the coil through the magnetic field when it carries a current.
Earths magnetic poles reverse approximately every years?
The process of the reversal of the Earth's magnetic poles is called a magnetic flip. This occurs every 4 or 5 times per million years.
How poles are produced in 2 non polar molecules?
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Are global winds are produced by the movement of air between the equator and the poles?
yes
What happens to the brain if the poles reverse?
If the Earth's magnetic poles were to reverse, it would not have any direct effect on the brain. The reversal would mainly impact magnetic compasses and certain animal navigation systems that rely on the Earth's magnetic field for orientation. Our brain's functioning would not be directly affected by this event.
How the poles of an electromagnet can be reversed?
The poles of an electromagnet can be reversed by changing the direction of the current flowing through the coil of wire. By switching the positive and negative terminals of the power source, the magnetic field produced by the electromagnet will also reverse, causing the poles to switch.
What lets the north pole and south pole of a solenoid be able to change poles?
The poles of the solenoid depend on the direction of the current through the coil. The current reverses if you just reverse the polarity of the voltage between the ends of the coil. Heck, if you energize the coil with AC, you can do that 120 times every second.
How do you reverse the magnetic field of an electromagnet?
To reverse the magnetic field of an electromagnet, you can either reverse the direction of the current flowing through the coil or change the polarity of the power supply connected to the coil. This will change the direction of the magnetic field produced by the electromagnet.
How can the polarity of an electromagnet be determined if the directions of current flow is known?
Current flow is from positive to negative. Use the left hand rule for finding the north and south poles. Grab the coil in your left hand, with your fingers wrapped around the coil in the direction of the current flow. Your thumb will then point toward the north pole of the coil. Reverse the positive - negative connections to the coil and the north - south poles will change ends. The left hand rule will still be in effect as the current will now be flowing in the reverse direction as it was in the first connection.
How can the polarity of an electromagnet be determined if the direction of the current is known?
Current flow is from positive to negative. Use the left hand rule for finding the north and south poles. Grab the coil in your left hand, with your fingers wrapped around the coil in the direction of the current flow. Your thumb will then point toward the north pole of the coil. Reverse the positive - negative connections to the coil and the north - south poles will change ends. The left hand rule will still be in effect as the current will now be flowing in the reverse direction as it was in the first connection.
How can polarity of electromagnet be determined if the direction of current flow is known?
Current flow is from positive to negative. Use the left hand rule for finding the north and south poles. Grab the coil in your left hand, with your fingers wrapped around the coil in the direction of the current flow. Your thumb will then point toward the north pole of the coil. Reverse the positive - negative connections to the coil and the north - south poles will change ends. The left hand rule will still be in effect as the current will now be flowing in the reverse direction as it was in the first connection.
What happens if a direct current is put through a coil suspended between the poles of a magnet?
The coil will align itself with the magnetic field (poles) of the magnet.
How the direction of EMF depends on the direction of current?
Current flow is from positive to negative. Use the left hand rule for finding the north and south poles. Grab the coil in your left hand, with your fingers wrapped around the coil in the direction of the current flow. Your thumb will then point toward the north pole of the coil. Reverse the positive - negative connections to the coil and the north - south poles will change ends. The left hand rule will still be in effect as the current will now be flowing in the reverse direction as it was in the first connection.
How alternating voltage is generated in a coil of wire when it is rotated between the poles of a magnet?
Electical current.=============================Answer #2:When a coil moves in the vicinity of a magnet, a voltage between the endsof the coil is produced. If the coil happens to be part of a closed circuit, thenthere could be an electrical current.Answer #3When a coil moves through a changing magnetic field, a voltage is produced, and when a resistor is connected to the coil some current flows and power is produced in the resistor. This power comes from the mechanical power needed to push the coil through the magnetic field when it carries a current.
Which kind of magnet has the same magnetic field as the long coil of wire?
A solenoid, which is a long coil of wire, produces a magnetic field similar to that of a bar magnet when a current passes through it. The magnetic field produced by a solenoid is confined within the coil and has north and south poles along its axis.
Generator consisting of a coil that rotates between the poles of an electromagnet?
dynamo
About how do earths magnetic poles reverse?
every 250,000 years :)
