When the speed of electron increases, its specific charge:-

# When the speed of electron increases, its specific charge:-

1. A
Increases
2. B
Decreases
3. C
Remains unchanged
4. D
Increases and then decreases.

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### Solution:

The specific charge of a species is determined by the charge to mass ratio of the species, and the mass of a species is a function of its velocity. Consequently, it is possible to calculate the variance in an electron's particular charge by first establishing a link between specific charge and mass, and then between mass and electron speed.
Concept- Specific charge – charge/mass
Mass of   - relativistic mass of equation
Mass of = Charge on = Einsteins R.M.E = The specific charger drops as electron speed increases since charge doesn't change with velocity.
Another factor that contributes to a particular charge is the charge to mass ratio. The electron's De Broglie wavelength decreases with increasing electron speed.
Hence, option 2 is correct.

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