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What are hard magnetic materials?
Hard Magnetic materials- They have a slowly rising magnetization curve along with large hysteresis loop area and therefore large energy losses. These materials have high value of retentivity and low permeability and high value of coercivity. To saturate the hard magnetic materials, a high magnetizing force is needed. Hard magnetic materials have property of storing a significant amount of magnetic energy after magnetization and retaining similar for a long time. Because of this property they are used in the manufacture of permanent magnets.
Q. The truth table for F(A,B,C) = mi (2, 3, 4 5) is as follows: (a) Express F in a canonical sum-of-products form. (b) Minimize F in an SOP form, and obtain a possible realiz
why we plot graph to find bandwidth is drawn b/w av/avmax v/s frequency not av v/s frequency?
What is I/O mapping? The assignment of addresses to various I/O devices in the memory chip is known as I/O mapping.
We can use Ampere's Law to calculate the magnetic field in the core.
Q. How do you modify the direction of rotation of a D.C. motor? Ans: The direction of rotation of DC motor will be changed either by changing the field winding connections o
The aim of this project is to design, construct and build a motorised base driven by two small dc motors. The motor drives are two H-bridges. The switching devices in these bridges
Discuss the properties and uses of Cold rolled grain oriented steel. Cold rolled grain oriented steel: Grain orientation of silicon steel is acquired by a special technique
Determine the Service and Backwash Rates The system on site is a pressure sand filter, with a service curve. The filter is backwashed using the feed pump, at a higher flow rate, s
WHAT IS MIDPOINT BIASING OF A TRANSISTOR?
advantage and disadvantage of alloying steel with silicon
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