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Q. What are polar molecules? Give an example.
i) A polar molecule is one in that the centre of gravity of the positive charges is separated from the centre of gravity of the negative charges by a finite distance.
ii) Instance: N2O, H2O, HCl, NH3.
iii) They have an eternal dipole moment.
Factors on which Magnetic Force Depends: The magnetic force depends on following factors: 1. Nature of Pole: Like poles repel each other and unlike pole attract each other.
As the temperature of the air enhances from 0 degrees C to 20 degrees C, the wavelength of a sound made by a tuning fork of fixed frequency does which of the following? Does th
the numerical ratio of displacement to the distance covered is always ???????????????
What occurs if electrical connection or electrical joint is loose? Ans: Because of loose connection at joints resistance at that point will increase thereby the I²R loses ar
quenching process in g.m. counter
Di - Electric: The insulator used among the plates of a capacitor is known as Di-electric.
what is the principle on which deflection magnetometer work?
Describe Kirchoff's Voltage Law? Ans. It describe, " the sum of the Voltage drops around a DC series circuit same to the applied voltage or source. E = E 1 + E 2 = E 3 .
Ngan has a weight of 314.5 N on Mars and a weight of 833.0 N on Earth. a. What is Ngan's mass on Mars? b. What is the acceleration due to gravity on Mars, g Mars ?
The current in an RL circuit builds up one-third of its steady value in 4.56s. Find the inductive time constant.
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