Concept explainers
(a)
The radius of curvature.
(a)
Answer to Problem 72GP
The radius of curvature is
Explanation of Solution
Given:
The mass of helium atom is
The charge of electron is
The voltage is
The magnetic field is
Formula used:
The force exerted
Here,
The maximum force
Here, m is the mass and a is the acceleration.
The centripetal acceleration of charged particles ( a ) is,
Calculation:
From the above three equations,
Substitute
The charge of helium is,
The radius of curvature is,
Conclusion:
Thus, the radius of curvature is
(b)
The period of revolution.
(b)
Answer to Problem 72GP
The period of revolution is
Explanation of Solution
Given:
The mass of helium atom is
The charge of electron is
The voltage is
The magnetic field is
Formula used:
The time required for a particles of charge q moving with a constant speed v to make one circular revolution in a uniform magnetic field B is given by,
Calculation:
The period of revolution is,
Conclusion:
Thus, the period of revolution is
Chapter 20 Solutions
Physics: Principles with Applications
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