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The electric potential at the surface of an atomic nucleus (z=50) of radius 9.0×10⁻¹³ cm is
Options
(a) 80 volt
(b) 8×10⁶ volt
(c) 9 volt
(d) 9×10⁵ volt
Correct Answer:
8×10⁶ volt
Explanation:
V = (1 / 4πε₀). q/r
= [9 × 10⁹ × 50 × 1.6 × 10⁻¹⁹] / 9 × 10⁻¹⁵
= 8 × 10⁶ volt
Related Questions: - A spherical body of emissivity e=0.6, placed inside a perfectly black body is maintained
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- In a coil having e.m.f. of 8 V induced for 0.05 s. The value of current changes
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Topics: Electrostatics
(146)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A spherical body of emissivity e=0.6, placed inside a perfectly black body is maintained
- The physical quantities not having same dimensions are
- In a coil having e.m.f. of 8 V induced for 0.05 s. The value of current changes
- In a tangent galvanometer, a current of 0.1 A produces a deflection of 30⁰.
- The ratio of minimum wavelengths of Lyman and Balmer series will be
Topics: Electrostatics (146)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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