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How is magnet used in electric fans?
A magnet is used in the motor of an electrical fan so that the motor of the electric fan can spin and this allows you to feel the wind caused by the movement of the blades of the fan. 2 Magnets are usually used in an electrical fan. They are placed opposite of each other with hundreds of coils of copper wire between the magnets. This set-up is known as a simple electric motor. Detail: Magnetic field lines pass from the north pole of the magnet to the south pole. When an electromotive force is supplied to the coil of wire, current flows through the coil of wire. The coil of wire produces a magnetic field that interacts with the magnetic field lines caused by the magnets. According to Fleming's Left hand rule, the motor will rotate in a clockwise/ anti-clockwise direction due to the forces on the LHS and RHS of the coil. This creates a clockwise/anti-clockwise torque that causes the motor to rotate. A split-ring commutator and carbon brushes are usually used. Split-ring commutators allow the direction of current to be reversed every half a cycle of revolution to allow for a continuous rotation. A carbon brush is used to allow for continuous electrical contact between circuit and the split-ring commutator (except when it reaches the gap).
What is the difference between ring main system and radial system in electrical power system?
Ring main system In this system, various power stations or sub-stations are interconnected alternate routes, thus forming a closed ring. In case of damage to any section of the ring, that section may be disconnected for repairs and power will be supplied from both ends of the ring. A radial system has a single simultaneous path of power .The distribution systems are typically radial because networked systems are more expensive. +++ In the user's premises - a private house, school or commercial premises, say - a Ring Main consists of a cable that runs in a complete "ring" from the circuit-breaker or fuse output, round the building and back to the circuit-breaker output. The various socket outlets or lamps - two separate ring-mains from separate CBs - are connected across the ring pair, so all fittings and appliances on that ring are in parallel and with a double-ended feed. A radial, or spur, version, would have each socket or perhaps one room set of sockets, on its own spur from the CB. Electric ovens are commonly on their own CBs or fuses and spurs, due to their high current demand. It is normal to have more than one ring for either lamps or power, usually by floor in a house or other small building.
What internetworking device is used to connect computers on a Token Ring?
Token ring hub
Does Packet Collisions occur in Token Ring Networks?
No, unless the ring is broken then collision can occur
What is a circular ring or one side of a disk?
A track is a circular ring on one side of the disk.
What causes an electrical contactor to make a buzzing noise when activated and what should be done about it?
Contactor chatter can be caused by a broken shading ring winding on the pole face of the contactor. Low voltage to the coil can be another reason for contactor chatter. A constant hum on a contactor will be caused by misalignment to the two pole faces. Check for rust building up on the two surfaces.
Why does an ac contactor need shading rings?
In a AC contactor, a shaded ring is essential to prevent it from buzzing twice a cycle. Ac contactor takes a input of alternating voltage resulting an alternating current and flux through its windings. So The contactor buzzes each time the magnitude of alternating magnetic field reaches zero. The shaded rings are provided at some part of the core. When the alternating flux cuts them the produce another alternating magnetic field which is out of phase from the main magnetic field. So the resultant magnetic field no more zero at the contacts and which prevents the contact from buzzing.
How to find the North Pole of a ring magnet?
we can find the poles of a ring magnet by tieing thread along the circumference of it and suspend it with a torsionless string then it will allign itself according to earth magnetic field
How do you make a pk ring?
melt a magnet and mold it like a ring...hehehe...
Can a metal ring be attracted to a magnet?
No, the metal ring cannot if it is made out of copper.
Does the magnet move as a freely falling object when it is dropped toward a conducting ring lying on the floor As the magnet falls toward the ring?
No, the magnet will not fall as a freely falling object when dropped toward a conducting ring. The magnet will experience resistance due to electromagnetic induction as it moves towards the conducting ring, which will slow down its descent. This is known as magnetic braking.
What are ring magnet properties?
They are round. And they are magnetic. Without a specification for the magnet nothing more can be assumed.
Witch is a better conductor a earing or a magnet?
ear rings a sit is made of material but in case of magnet it is a stone so ear ring is a good conductor.So be ware of wearing a ear ring ear rings a sit is made of material but in case of magnet it is a stone so ear ring is a good conductor.So be ware of wearing a ear ring
What is a ring stamped with IM it is gold looking with a red stone and sticks to a magnet?
If it sticks to a magnet it's not gold.
What will happenis you drop a copper ring around a magnet?
They get Atracted
Why rotor contactor in external resistance of slipring motor connected in delta?
rotor contactor are used to cut the resistance in slip-ring motor connected through resistance box. resistance is proportional to torque. so by controlling rotor contactor resistance can be controlled and hence torque can be controlled. for more information check torque and speed characteristic of wound motor.
Will a white gold ring stick to a magnet?
No, white gold is not magnetic so a white gold ring will not stick to a magnet. It is composed of gold, alloyed with white metals like nickel or palladium, which are not magnetic.
