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At the out set it appears as though the ...

At the out set it appears as though the principle of superposition is similar to the additive property. But, it is not so. Can you guess the important difference?

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Unlike mass charges are of two different kinds, positive and negative.
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A gaseous sample is generally allowed to do only expansion // compression type work against its surroundings The work done in case of an irreversible expansion ( in the intermediate stages of expansion // compression the states of gases are not defined). The work done can be calculated using dw= -P_(ext)dV while in case of reversible process the work done can be calculated using dw= -PdV where P is pressure of gas at some intermediate stages. Like for an isothermal reversible process. Since P=(nRT)/(V) , so w=intdW= - underset(v_(i))overset(v_(f))int(nRT)/(V).dV= -nRT ln(V_(f)/(V_(i))) Since dw= PdV so magnitude of work done can also be calculated by calculating the area under the PV curve of the reversible process in PV diagram. If four identical samples of an ideal gas initially at similar state (P_(0),V_(0),T_(0)) are allowed to expand to double their volumes by four different process. I: by isothermal irreversible process II: by reversible process having equation P^(2)V= constant III. by reversible adiabatic process IV. by irreversible adiabatic expansion against constant external pressure. Then, in the graph shown in the final state is represented by four different points then, the correct match can be

AAKASH SERIES-ELECTRIC FIELD AND POTENTIAL-EXERCISE (VERY SHORT ANSWER QUESTIONS)
  1. A metallic sphere is charged negatively, Will its mass increase, decre...

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  2. Electrostatic experiments cannot be conducted successfully on humid da...

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  3. At the out set it appears as though the principle of superposition is ...

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  4. What is meant by the statement "charge is quantized".

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  5. Which of the following statement is not a similarity between electrost...

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  6. What similarities do electrostatic forces have to gravitational forces...

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  7. Can the relative permittivity of a medium be less than 1?

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  8. Vehicles carrying inflammable materials usually have chains that hang ...

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  9. Although ordinary rubber is insulator, the rubber tyres of air crafts ...

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  10. An uncharged body if kept in contact for some time with a charged body...

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  11. Electrostatic field lines of forces do not form closed loops. If they ...

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  12. The electric lines of force do not intersect. Why?

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  13. Consider two charges +q and -q placed at B and C of an equilateral tri...

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  14. A sure test of electrification is

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  15. Conductors and insulators

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  16. Can there be electric potential at a point with zero electric intensit...

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  17. Assertian: Basic difference between an electric line and magnetic line...

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  18. Fig shows electric lines of force emerging from a charged body. Is ele...

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  19. A charged particle is free to move in an electric field. Will it alway...

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  20. Fig shows the electric field lines due to a point positive charge. P a...

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