Question

Пылинка массой 10 г висит между пластинами плоского воздушного конденсатора к которому приложено напряжение 1000 В. Расстояние между пластинами 5 см. Каков заряд пылинки?

Answer 1

M=10^-2 кг   U=10^3 B    d=5*10^-2 м    q=?
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m*g=E*q
E=U/d
q=m*g*d/U=10^-2*10*5*10^-2/10^3=5*10^-6 Кл    (5 мкКл)
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Answer 2

Calculating the Charge of the Dust Particle

To calculate the charge of the dust particle hanging between the plates of the flat air capacitor, we can use the formula:

Q = CV

Where: - Q = charge on the particle - C = capacitance of the capacitor - V = voltage applied across the capacitor

Capacitance Calculation

The capacitance of a flat air capacitor is given by the formula:

C = ε₀A/d

Where: - C = capacitance - ε₀ = permittivity of free space (constant value) - A = area of the plates - d = distance between the plates

Given: - Voltage (V) = 1000 V - Distance between plates (d) = 5 cm = 0.05 m

Let's calculate the capacitance using the given information.

Calculation

The permittivity of free space (ε₀) is a constant value of approximately 8.85 x 10^-12 F/m.

Using the formula C = ε₀A/d, and assuming the area of the plates is not provided, we'll proceed with the calculation using the given distance between the plates.

C = (8.85 x 10^-12 F/m) * A / 0.05 m

Unfortunately, the area of the plates (A) is not provided in the given information, so we are unable to calculate the exact capacitance without this information.

Without the area of the plates, we cannot proceed to calculate the charge on the dust particle. If you have the area of the plates, please provide it so we can proceed with the calculation.