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Two electrons are separated by a distance of 1Å. What is the coulomb force between them?
Options
(a) 2.3×10⁻⁸ N
(b) 4.6×10⁻⁸ N
(c) 1.5×10⁻⁸ N
(d) None of these
Correct Answer:
2.3×10⁻⁸ N
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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- When a bullet of mass 10 g and speed 100 ms⁻¹ penetrates up to distance 1 cm
- Four identical rods are joined to from a square. If the temperature difference
- A bullet emerges from a barrel of length 1.2 m with a speed of 640 ms⁻¹.
- Two cells when connected in series are balanced on 8m on a potentiometer.
- The de-Broglie wavelength of a proton(charge = 1.6 x 10⁻¹⁹ C, Mass = 1.6 x 10⁻²⁷ kg)
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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1 angstrom = 10^-10 metre.
Also,electron charge=1.6 X 10^-19
F=1/4π€.(q1 X q2)/r^2
thus,
F=(9X10^9) X (1.6X10^-19)^2/(10^-10 X 10^-10)
Hence,F = 23.04 X 10^-9
Implies,F = 2.3 X 10^-8 N