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Two infinitesimally small bodies are cha...

Two infinitesimally small bodies are charged by rubbing against each other are found to attract each other with a force of `3.7xx10^(-13)` N when separated by a distance of `5xx10^(-8)` m. How many electrons were transferred from one body to the other after rubbing ?

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To solve the problem, we will use Coulomb's law and the relationship between charge and the number of electrons. Here’s the step-by-step solution: ### Step 1: Understand the Given Data We are given: - Force of attraction (F) = \(3.7 \times 10^{-13}\) N - Distance (r) = \(5 \times 10^{-8}\) m ### Step 2: Apply Coulomb's Law ...
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MODERN PUBLICATION-ELECTRIC CHARGES AND FIELDS -Chapter Practice Test
  1. Two infinitesimally small bodies are charged by rubbing against each o...

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  2. Why electrostatic field is normal to the surface at every point of a c...

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  3. Define electric dipole moment. Write its SI unit ?

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  4. when an electric dipole is suspended in a uniform electric field, then...

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  5. Two charged particles are placed at a distance r from each other. The ...

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  6. An electric dipole having dipole moment 2 xx 10^(-6) C-m is enclosed b...

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  7. Two infinitely long parallel wires having linear charge density 3 xx 1...

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  8. In a region of space uniform electric field vecE=2xx10^(3) hati NC^(-1...

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  9. Two charges of magnitude -2Q and +Q are located at points (a,0) and (...

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  10. What are electric field lines? Why do two field lines never intersect ...

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  11. Equal charges q are placed at the four corners A,B,C,Dof a square of l...

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  12. Using Gauss's law obtain the expression for the electric field due to ...

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  13. Two small identical electrical dipoles AB and CD, each of dipole momen...

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  14. A conducting ring of radius 40 cm has a charge of 5 xx 10^(-9) C unifo...

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  15. A thin straight infinitely long conducting wire having charge density ...

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  16. In Fig, electric field is directed along +X direction and is given by...

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