If a current-carrying conductor is placed in a magnetic field produced by permanent magnets, then the fields due to the current-carrying conductor and the permanent magnets interact and cause a force to be exerted on the conductor. The force on the current carrying conductor in a magnetic field depends upon: The flux density of the
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The solenoid is very important in electromagnetic theory since the magnetic field inside the solenoid is practically uniform for a particular current, and is also versatile, inasmuch that a variation of the current can alter the strength of the magnetic field. An electromagnets, based on the solenoid, provides the basis of many items of electrical
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Magnetic fields can be set up not only by permanent magnets, but also by electric currents. Let a piece of wire be arranged to pass vertically through a horizontal sheet of cardboard on which is placed some iron filings, as shown in Fig (a). If a current is now passed through the wire, then the
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From moderate to severe, sickle cell anemia symptoms might differ from person to person. While some individuals with sickle cell anemia may not show symptoms until later in life, others may have persistent and serious symptoms. The most common symptoms of sickle cell anemia include: Pain : Anywhere in the body can experience painful episodes,
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Sickle cell anemia is a hereditary condition that alters the structure of the body’s red blood cells. Red blood cells in people with sickle cell anemia have defective haemoglobin molecules, which gives the cells a crescent or sickle shape. These aberrant cells have the potential to lodge themselves in tiny blood vessels, restricting oxygen and
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