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It contains 35%- 90% nickels. Higher is the nickel content higher is the permeability and lower is the magnetic saturation of the alloy. MN, CO, and Mo can also be added in trace quantities as impurity. Addition of small amount of other elements in Nickel – iron alloys improves their magnetic properties in certain direction. Thus CO reduces hysteresis, MN reduces coactivity and Mo increases permeability and reduces iron losses.
Demonstration vernier Two pieces of tongued and grooved floor board about 1 m long can be used to make this apparatus. Saw 7 cm off the tongued board and glue it into the groov
If a particle is projected vertically upward in a constant gravitational field with an initial speed v 0 . If there is a retarding force proportional to the square of the instantan
A transformer takes a current of 0.8A when its primary is connected to a 240 volt, 50Hz supply, the secondary being on open circuit. If the power absorbed is 72 watts, Determi
Graphs of current against voltage for two resistors P and Q are shown in Figure. Determine the value of every resistor.
why the magnetic field is zero at the center point of the earth
Applications of cement mortar 1. It is used to carry out pointing and plaster works on exposed surface of masonry. 2. It is used to bind the building units like bricks, ston
Q. Give the applications of Moseley's law. (i) The elements are organized in the periodic table according to the atomic numbers and not according to the atomic weights. (ii
a=The set of whole numbers less than 4
project work
What evidence is there supporting the Big Bang theory? In short, the universe is increasing. All of the galaxies we have observed that are great distance away are moving away f
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