Explain what is relation between magnetic and electricity and why?
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Mercury thermometer is constructed as shown in Figure The capillary tube has a diameter of 0.004 cm, and the bulb has a diameter of 0.250 cm. neglecting the expansion of the glass, find the change in height of the mercury column that occurs with a temperature change of 30.0 °C.
What is Reduction ?
Define Biot Number?
Using which process does the blotting paper absorb ink?
Explain what is the ray of light?
Explain the Effect of Temperature on Vapour Pressure ?
Explain about Electron microscope?
For what the parabolic dishes are used?
Explain the Shadows ?
Why are the tides produced in the sea ?
assuming g = 9.8 m/sec2, what is the weight on earth, in newtons, of a 60 kilogram person?
How do you find your body volume using a tape measure?