AP EAMCET202022 Sep 2020Morning ShiftPhysicsElectrostaticsActual
The electric potential at the surface of an atomic nucleus (Z=50) of radius 9 10⁻¹⁵ ~m is
Options
- A4 10^6 ~V
- B8 10^6 ~V
- C4 10⁻⁶ ~V
- D8 10⁻⁶ ~V
Correct answer
B. 8 10^6 ~V
Step-by-step solution
Atomic number, Z=50 Radius, r=9 10⁻¹⁵ ~m Electric potential at the surface of atomic nucleus, aligned V & = 1 4 ₀ q r = 1 4 ₀ Z e r [ q=Z e] & =9 10^9 50 1.6 10⁻¹⁹ 9 10⁻¹⁵ =8 10^6 ~V aligned