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Q. What are secondary cells? Give an example?
i) They are rechargeable.
ii) The chemical reactions which take place in secondary cells are reversible.
iii) The active materials which are used up when the cell delivers current can be reproduced by passing current through the cell in opposite direction. Instance lead acid accumulator and alkali accumulator.
Newtons Laws Skydiving Assume the motion of the skydiver below. As the skydiver falls and he encounters the force of air resistance. An amount of air resistance is dependent up
In steady state forced vibration, briefly explain how the phase of driven system modifies with frequency of the driving force?
If two forces P & Q act at such an angle that the resultant force r=p. Then show that if P is doubled the new resultant is at right angle Q and it's value is ( 4P 2 -Q 2 ) 1/2
Q. Is air travel time the similar whether or not the plane is flying with or against the rotation of the Earth? Answer:- All air travel gets the earth's rotation into acco
Why we are showing work done over a closed path is zero to prove that electrostatic forces are conservative
1. Calculate the entropy change when 1 kmol of an ideal gas at 300 K and 10 bar expands to a pressure of 1 bar if the temperature stays constant. 2. What is the change in entrop
It is a mathematical explanation of the disturbance prepared by a ray. For a string, the wave function is a distance for sound rays. It is a density or pressure fluctuation while f
calculate the work required to be done to stop a car of 1500 kg moving at a velocity of 60 km/h?
Describe binding energy. How does binding energy per nucleon vary with mass number? What is it significance.
When the curve is not simple or linear as diode valve is known as non-ohmic device.
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