Alternating current changes the orientation of the electromagnetic field by rapidly switching directions, helps to demagnetization.
<h3 /><h3>What is the process of Demagnetization by AC current?</h3>
Alternating current changes the orientation of the electromagnetic field by rapidly switching directions.
Because providing an electrical field (electromagnet) is one technique to create a magnet, it stands to reason that you can use alternating current to remove magnetism as well.
To do this, an alternating current (AC) current is sent through a solenoid. Begin with a greater current and gradually lower it until it is zero.
The magnetic dipoles strive to position themselves according to the field, but because it changes, they become randomized. Due to hysteresis, the material's core may retain a modest magnetic field.
Hence, alternating current changes the orientation of the electromagnetic field by rapidly switching directions, helps to demagnetization.
To learn more about demagnetization, refer:
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Answer:
Speed is the time rate at which an object is moving along a path, while velocity is the rate and direction of an object's movement.
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Answer:
lp please
How far would earth be from the sun if we had 400 days in a year?
Explanation:
lp please
How far would earth be from the sun if we had 400 days in a year?lp please
How far would earth be from the sun if we had 400 days in a year?lp please
How far would earth be from the sun if we had 400 days in a year?lp please
How far would earth be from the sun if we had 400 days in a year?lp please
How far would earth be from the sun if we had 400 days in a year?lp please
How far would earth be from the sun if we had 400 days in a year?lp please
How far would earth be from the sun if we had 400 days in a year?lp please
How far would earth be from the sun if we had 400 days in a year?lp please
How far would earth be from the sun if we had 400 days in a year?
Answer: (4) Resonance
Explanation:
Resonance is a phenomenon in which an external force or a vibrating system forces another system around it to vibrate with greater amplitude at a specified frequency of operation.
Some Examples of Resonance
Musical Instruments
The best examples of resonance can be observed in various musical instruments around us. Whenever any person hits, strikes, strums, drums or tweaks any musical instrument, the instrument is set into oscillation or vibration at the natural frequency of vibration of the instrument. A unique standing wave pattern defines each frequency of vibration as a specific instrument. These natural frequencies of a musical instrument are known as the harmonics of the specified instrument. If a second interconnected object or instrument vibrates or oscillates at that specified frequency then the first object can be forced to vibrate at a frequency higher than its natural harmonic frequency and as such, resonance occurs.
Aoelian Vibration (Harp)
Wind blowing across suspended power lines may cause the power lines to vibrate at their natural frequency. This often produces audible sound waves showing that resonance has occurred due to the frequency of vibration of the wire coninciding with that of the wind.
Explanation:
(a) v = 2π r / t
v = 2π (0.85 m) / (0.65 s)
v = 8.2 m/s
(b) a = v² / r
a = (8.2 m/s)² / (0.85 m)
a = 79 m/s²
(c) F = ma
F = (0.013 kg) (79 m/s²)
F = 1.0 N
