
В масс-спектрометре одноразово ионизированная частица движется со скоростью 956 км/с по окружности
диаметром d=0.2 м в однородном магнитном поле с магнитной индукцией В=0.1 Тл. Найдите массу частицы. Какая это частица?

Ответы на вопрос




Calculation of Particle Mass in a Mass Spectrometer
To calculate the mass of the particle, we can use the equation for the centripetal force acting on a charged particle moving in a magnetic field:
F = qvB
Where: - F is the centripetal force - q is the charge of the particle - v is the velocity of the particle - B is the magnetic field strength
In this case, the particle is moving in a circular path with a diameter of d = 0.2 m, which means the radius is r = d/2 = 0.1 m. The velocity of the particle is given as 956 km/s, which we need to convert to m/s by dividing by 3.6:
v = 956 km/s / 3.6 = 265.56 m/s
The magnetic field strength is given as B = 0.1 T.
Since the particle is moving in a circular path, the centripetal force is provided by the magnetic force:
F = qvB
The magnetic force can also be expressed as:
F = mv^2 / r
Setting these two equations equal to each other, we can solve for the mass of the particle:
qvB = mv^2 / r
Simplifying the equation:
m = qBr / v
Now we can substitute the given values:
m = q * 0.1 T * 0.1 m / 265.56 m/s
To determine the type of particle, we need to know the charge (q) of the particle. Unfortunately, the charge is not provided in the question. Therefore, we cannot determine the exact type of particle without that information.
Please provide the charge of the particle so that we can calculate the mass and determine the type of particle.


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