Concept explainers
(a) To determine:
The velocity of a beam of electrons.
Answer to Problem 2P
Solution:
The velocity of the beam of electrons is .
Explanation of Solution
Given:
Electric field,
Magnetic field,
Formula used:
The velocity of the electron beam is calculated by the formula
Here,
is the electric field
is the magnetic field
Calculation:
The velocity of the electron beam is calculated as
Plugging the values in the above equation
(b) To determine:
The radius of the electron orbit, if electric field is switched off.
Answer to Problem 2P
Solution:
The radius of the electron orbit is .
Explanation of Solution
Given:
Electric field,
Magnetic field,
Formula used:
In the absence of electric field the radius of the electron orbit is calculated as
Here,
is the magnetic field
is the charge of electron
is the mass of the electron
is the velocity of the electron
is the radius of the electron orbit
Calculation:
In the absence of electric field the radius of the electron orbit is calculated as
Plugging the values in the above equation
Chapter 27 Solutions
Physics: Principles with Applications
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