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How much positive and negative charge i...

How much positive and negative charge is there in a cup of water ?

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To determine the amount of positive and negative charge in a cup of water, we will follow these steps: ### Step 1: Determine the mass of water in the cup Assume the mass of 1 cup of water is approximately 250 grams. ### Step 2: Calculate the molecular mass of water (H2O) The molecular mass of water can be calculated as follows: - Hydrogen (H) has a mass of approximately 1 g/mol, and there are 2 hydrogen atoms in water. ...
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NCERT ENGLISH-ELECTRIC CHARGES AND FIELDS-Exercise
  1. How much positive and negative charge is there in a cup of water ?

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  2. What is the force between two small charged spheres having charges of...

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  3. The electrostatic force on a small sphere of charge 0.4 muC due to ano...

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  4. Check that the ratio ke2/G memp is dimensionless. Look up a Table of P...

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  5. (a) Explain the meaning of the statement ‘electric charge of a body is...

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  6. When a glass rod is rubbed with a silk cloth, charges appear on both. ...

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  7. Four point charges q(A) = 2 mu C , q(B) = -5 mu C, q(C) = 2 mu C and ...

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  8. (a) An electrostaic field line is a continous curve. That is a field l...

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  9. Two point charges q(A) = 3 mu C and q(B) = -3 muC are located 20 cm ...

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  10. A system has two charges q(A)= +2.5xx10^(-7)C and q(B)= -2.5xx10^(-7)C...

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  11. An electrtic dipole with dipole moment 4xx10^(-9) C m is aligned at ...

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  12. A polythene piece rubbed will wool is found to have a negative charge ...

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  13. (a) Two insulated charged copper spheres A and B have their center...

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  14. Suppose the spheres A and B in the above question have identical sizes...

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  15. Figure shows tracks of three charged particles crossing a uniform elec...

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  16. Consider a uniform electric field E = 3xx10^(3) hat(i) N//C. (a) What...

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  17. What is the net flux of the uniform electric field of the above questi...

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  18. Careful measurement of the electric field at the surface of a black...

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  19. A point charge +10 mu C is at distance of 5cm directly above the cente...

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  20. A point charge of 2.0 muC is at center of a cublic Gaussian surface 9...

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  21. A point charge causes an electric flux of -1.0xx10^(3) N m^(2)//C to p...

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