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Why is the electromagnet inside the door bell magnetised and demagnetised alternatively?
The electromagnet inside the doorbell is energized with an electric current, which magnetizes it to attract the metal chime. When the current is turned off, the magnetism is lost, causing the chime to be released. This alternating process creates the ringing sound in a doorbell.
Why is the electromagnet inside a doorbell magnetised and demagnetised alternatively?
The electromagnet inside a doorbell is magnetized when an electric current flows through it, creating a magnetic field that attracts the metal clapper to ring the bell. When the current stops, the magnetic field dissipates, demagnetizing the electromagnet and allowing the clapper to return to its resting position. This process of magnetization and demagnetization occurs repeatedly to produce the ringing sound of the doorbell.
Why heat demagnetised the steel?
A piece of metal can be magnetized if the atoms of which it is composed are magnetic, and they have aligned their north-south poles to point in the same direction. Heat increases atomic vibration and will cause these atoms to lose their alignment and point in all different directions, so that their atomic magnetic fields will not combine to form one large magnetic field.
What does the word struck mean?
"Struck" is the past tense of the verb "strike," which can mean to hit, collide with, or make contact with forcefully. It can also mean to be affected by a particular situation or emotion.
What is the significance of Mean square distance?
Mean square distance is a statistical measure that provides information about the dispersion of data points from the mean. It is commonly used in various fields such as physics, engineering, and finance to quantify the variability of a dataset. A smaller mean square distance indicates that data points are closer to the mean, while a larger mean square distance suggests more variability in the data.
How do you spell demagnetised?
In Australia and the UK, you would spell it "demagnetised". In the US, you would substitute a 'z' - "demagnetized".
How does heat affect a magnet?
A permanent magnet (i.e. not an electromagnet) will be demagnetised by heating it.
How does soft iorn is different from hard iron?
That depends on what you mean - soft iron is usually the name given to iron that is easily magnetised and demagnetised. In which case it is usually very pure. Mecahnically soft and hard irons have different crystal structures and trace impurities, although iron is more correctly known as steel when it is anything but 100% pure iron.
How does demagnetisation of a magnet occur when you keep similar poles together?
WHEN A MAGNET IS DROPPED OR HAMMERED, VIBRATIONS CAUSED BY THE IMPACT ON THE MAGNET RANDOMIZE MAGNETIC MOLECULES and disturb the pattern of molecules of the magnet as a result magnet looses its magnetic force and becomes demagnetised.
Why is the electromagnet inside the door bell magnetised and demagnetised alternatively?
The electromagnet inside the doorbell is energized with an electric current, which magnetizes it to attract the metal chime. When the current is turned off, the magnetism is lost, causing the chime to be released. This alternating process creates the ringing sound in a doorbell.
Why is the electromagnet inside a doorbell magnetised and demagnetised alternatively?
The electromagnet inside a doorbell is magnetized when an electric current flows through it, creating a magnetic field that attracts the metal clapper to ring the bell. When the current stops, the magnetic field dissipates, demagnetizing the electromagnet and allowing the clapper to return to its resting position. This process of magnetization and demagnetization occurs repeatedly to produce the ringing sound of the doorbell.
What is a magnet that consists of a piece of iron or steel inside a coil of current carrying wire and uses electricity to produce magnetism?
its called an electromagnet... the current running around the core- i.e. the iron or steel piece, alligns the poles of the core according to the current flow. hence after alignment the core acts as a magnet, but when current flow is stopped, the core gets demagnetised. electromagnets have very important applications.
Why is banging a temporary magnet on a hard surface demagnetize it?
The magnetic properties of a temporary magnet are derived from the fact that its molecules are aligned along the magnetic polarity: they mostly point in the same direction and so one end of the temporary magnet is North and the other is South. Banging the magnet can knock some of these molecules out of alignment so that they face random directions. As a result, there is no particular direction in which is then North and South and so magnetism is reduced. When enough molecules have been knocked out of alignment you are left with a demagnetised piece of metal.
Why can a magnet be demagnetised by hammering it?
Hammering a magnet can disrupt the alignment of its magnetic domains, causing them to become disordered and reducing the overall magnetic field strength. This process can demagnetize the magnet as the domains lose their alignment and no longer exhibit a strong magnetic pull.
How can iron be demagnetized?
an iron can be demagnetised by ;-hammering it while facing east _west direction -hitting it hard on the ground -connecting it into an ac current while facing the east _west direction .
What does (.)(.) mean?
you mean what you mean
Can objects be demagnetized?
yes, an object can be demagnetized by 3 ways:hammeringheatingalternating current method
