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Role of Magnetic field in generating ultrasonic waves
Magnetic field is applied parallel to the length of a ferromagnetic rod made of material as like iron or nickel, a small elongation or contraction arises in its length. It is termed as magnetostriction. The change into length depends onto the intensity of the applied magnetic field and nature of the ferromagnetic material. The change within length is independent of the direction of the field.
1. What is the principle of gas filled detectors? 2. What are nuclear radiations or particle detectors?
the centre of oscillation of a meter stick suspended about a transverse axis is located at the 10cm mark.Determine at what other positions could the meter stick be suspended and ha
when do we use projected area instead of actual area and why
During light activity, a 70-kg person may generate 200 kcal /h. Assuming that 20% of this goes into useful work and the other80% is converted to heat, calculate the temperature ris
A confined quantity of air undergoes two thermodynamic processes departing from an initial equilibrium state where the temperature is 20°C, the absolute pressure is 1bar, and the v
A 400kVA transformer has a primary winding resistance of 0.5Ω and a secondary winding resistance of 0.001Ω . The iron loss is 2.5kW and the primary and secondary voltages are
examples of unlike parallel forces
Woodward-Hoffmann rules: These Rules govern the formation of products throughout certain types of organic reactions.
project on logic gates
A 50.0-g toy car travelling with a velocity of 3.00 m/s due north collides head-on with a 180.0-g fire truck travelling with a velocity of 0.50 m/s due south. The toys stick to
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