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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.
Deduce an expression for the electric potential because of an electric dipole at any point on its axis. Mention one contrasting feature of electric potential of a dipole at a point
deduce an expression for pressure at any point inside a liquid.
The nuclei have been separated on the basis of the number of protons (atomic number) or the total number of nucleons (mass number) as given below: (i) Isotopes: The atoms of ele
does sodium sulfate contain both ionic and covalent bonds
Describe Air Traffic Collision in details -The air track is also used to study of collisions, both elastic & inelastic. Since there is very minimum amount of energy lost through f
The rate of flow of energy or particles across a given surface.
A carbon steel plate (thermal conductivity = 45 W/m o C) (600 x 900 x 25) mm 2 is maintained at 310 o C. Air at 15 o C bellows over the hot plate. If convection heat transfer co-e
A truck engine mass 5000kg is pulling a trailer mass 1000kg along a level track at an acceleration of 0.01.Resistance are 10N per 1000for the engine 5N per 1000kg for the trailer.
current gain equations in 3 configurations.
The microwave (rotational) spectrum of 12 C 16 O having a series of lines spaced by 115.3 GHz. Suppose that the rotational energy levels of this molecule can be approximated by
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