Concept explainers
In a hydrogen atom, the proton and the electron
a. Calculate the force that the proton exerts on the electron at this distance.
b. Show that the electric field strength at the average location of the electron is an enormous
(a)
The force exerted by proton on electron.
Answer to Problem 43A
The force =
Explanation of Solution
Given:
Charge on electron and proton,
Distance between proton and electron,
Formula used:
The force exerted is given as,
Here, k is the Coulomb’s constant.
Calculation:
The force exerted by proton on electron is:
Conclusion:
The force exerted by proton on electron is
(b)
The electric field at average location of electron.
Answer to Problem 43A
The electric field = 6×1011 N/C.
Explanation of Solution
Given data:
Charge on electron and proton, q = 1.6×10-19 C.
Distance between proton and electron, r = 5×10-11 m.
Formula used:
The electric field is given as,
Here, k is the Coulomb’s constant.
Calculation:
The electric field at the average position of an electron:
Conclusion:
The electric field = 6×1011 N/C.
Chapter 33 Solutions
Conceptual Physics: The High School Physics Program
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