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Illustrate the principle of potentiometer. Define a mathematical experiment for the comparison of emf's of two cells.
Define the principle and construction of potentiometer and illustrate how the internal resistance of a cell is calculated using potentiometer.
Lenz''s Law states that the Nature of induced emf in the coil is such that it opposes the causes of it. It can be explained by a simple understanding of Faraday EM induction exper
Two wires on a piano are the same length and are pulled by the same tension. wire 1 vibrates at a frequency 1.5 times the frequency of wire 2. Calculate the ratio of their masses (
Sol: The incident angle is 45 because the angle of reflection and angle of incident is equal.
Calculate mass of an electron accelerated to kinetic energy of 2 M eV.
A sodium cation has different number of electrons from: (1) O 2- (2) F - (3) Li + (4) Al +3 Ans: Li +
Can we take a negative test charge to find electric field?
Infrared Waves: Infrared wave also known as heat wave. These waves are radiation by hot body at dissimilar temperature.
I have a circuit and using Kirchhoff''s second law I need to find the current across one of the battery. How should I do that?
your dog is running around the grass in your backyard.he undergoes successive displacement 3.50 m. on south,8.20 m northeast, and 15.0 m west.what is the resultant displacement?
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