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When the speed of electrons increases, then the value of its specific charge
- a)Increases
- b)Decreases
- c)Remains unchanged
- d)Increases upto some velocity and then begins to decrease
Correct answer is option 'B'. Can you explain this answer?
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Most Upvoted Answer
When the speed of electrons increases, then the value of its specific ...
To explain why the specific charge of electrons decreases as their speed increases, we need to understand the concept of specific charge and how it relates to the velocity of electrons.
Specific Charge:
Specific charge is a physical quantity that represents the charge-to-mass ratio of a particle. For electrons, the specific charge is constant and is approximately equal to -1.76 x 10^11 C/kg.
Relationship between Speed and Specific Charge:
As electrons accelerate and their speed increases, the kinetic energy of the electrons also increases. This means that the electrons are gaining energy and moving faster. However, the mass of the electrons remains constant, so as the speed increases, the denominator in the specific charge formula (charge-to-mass ratio) remains the same while the numerator (charge) remains constant.
Effect on Specific Charge:
Since the charge remains constant but the velocity increases, the specific charge of the electron decreases. This is because the increase in velocity is not accompanied by a proportional increase in charge, leading to a decrease in the specific charge value.
Therefore, when the speed of electrons increases, the specific charge of electrons decreases. This phenomenon is a fundamental property of electrons and is consistent with the laws of physics governing charged particles.
Specific Charge:
Specific charge is a physical quantity that represents the charge-to-mass ratio of a particle. For electrons, the specific charge is constant and is approximately equal to -1.76 x 10^11 C/kg.
Relationship between Speed and Specific Charge:
As electrons accelerate and their speed increases, the kinetic energy of the electrons also increases. This means that the electrons are gaining energy and moving faster. However, the mass of the electrons remains constant, so as the speed increases, the denominator in the specific charge formula (charge-to-mass ratio) remains the same while the numerator (charge) remains constant.
Effect on Specific Charge:
Since the charge remains constant but the velocity increases, the specific charge of the electron decreases. This is because the increase in velocity is not accompanied by a proportional increase in charge, leading to a decrease in the specific charge value.
Therefore, when the speed of electrons increases, the specific charge of electrons decreases. This phenomenon is a fundamental property of electrons and is consistent with the laws of physics governing charged particles.
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When the speed of electrons increases, then the value of its specific chargea) Increases b) Decreases c) Remains unchanged d) Increases upto some velocity and then begins to decrease Correct answer is option 'B'. Can you explain this answer?
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