The charge of one gram of electron is:
Correct answer: D. 1.7588 x 10^8
- A. 1.7588 x 10^-11
- B. 1.7588 x 10^11
- C. 1.602 x 10^-19
- D. 1.7588 x 10^8
Explanation
A is incorrect as given value is not charge of one gram of electrons.B is incorrect as given value is charge of one kilogram of electrons.C is incorrect as given value is not charge of one gram of electrons.D is correct as given value is charge of one gram of electrons.It can be obtained by dividing the charge of one kilogram of electrons by 1000
This question appeared on the UHS MDCAT 2010 paper, which you can sit online with every answer explained.
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About Discovery of the Proton
The discovery of the proton follows the study of positive rays, also called canal rays, observed in discharge tubes and later identified as positively charged particles. The work of Goldstein and Rutherford is linked to the proton's charge, relative mass and role in the nuclear model, distinct from the discovery of the electron.
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In atomic particles:
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