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These are non-metallic compounds consisting of ferric oxide and one or two bivalent metal oxides such as NiO, MnO. These have resistivity of the order of 109O cm, which reduces eddy current losses at high frequency. These magnets made out of it have high coercive force and square hysteresis loop. Magnetic permeability for these may be as high as 10,000 to 30,000. These materials are fabricated into shapes, such as triodes, E, U, I, beads and self shielding pot cores.
APPLICATIONS: CORES MADE OF ITS find use in filter applications up to 1MHz, high frequency power transformer operating at 10 to 100 KHz, pulse transforms up to 100MHz, adjustable air gap inductors recording heads and transducers.
Oxygen effect: The oxygen effect may play a role in the recurrence of cancer .The cell near the center of a large tumor have a poor blood supply and thus a poor oxygen supply
The lagging of an effect behind its cause; especially the phenomenon in which the magnetic induction of a ferromagnetic material lags behind the changing magnetic field.
1]What is the difference between a photon and a neutron? 2]Why are they massless?
An electron follows a helical path in a uniform mag-netic field of magnitude 0.300 T. The pitch of the path is 6.00 um, and the magnitude of the magnetic force on the elec-tron is
How does a color changes works in glass, glass segments or a polymer material? This consists usually of a small, geared motor with a disc. It can be made of glass, a polymer ma
What can justify the use of fiber optic? In the huge majority of tasks, using traditional implies, the amount of light used is far in excess to the quantity really required. Mo
give the theory of concave grating and Rowland mounting
For SHM to occur, three conditions must be satisfied. 1.There must be a position of stable equilibrium. At the equation in equilibrium potential energy is minimized. That is,
mass=volume * density.By using this formula we can find the mass of sphere. Volume of sphere=(4/3)pi*r^3 V=(4/3)*3.14*(1*10^-2)^3=4.187*10^-6 Mass=(4.187*10^-6)*900=3768*10^-6kg
The real length of path traversed by a body in a sub interval of time is called as distance. It is the real path travelled by an object among its final and initial positions. It is
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