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Plasma Frequency Calculator: Unraveling the World of Plasmas

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A remarkable aspect of plasmas, the fourth state of matter, is their characteristic frequency known as the plasma frequency. This critical parameter can aid in understanding several phenomena related to plasmas. In this article, we present to you our Plasma Frequency Calculator, an effective tool for calculating plasma frequency.

Understanding Plasma Frequency

Plasma frequency or plasma oscillation frequency is the rate at which density fluctuations of charged particles in a plasma oscillate. This property plays a key role in understanding the behavior of plasmas under different conditions.

The plasma frequency ω_p can be calculated using the formula:

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ω_p = sqrt((Ne * e²) / (m_e * ε_0))


  • Ne is the electron density.
  • e is the elementary charge (approximately 1.602176634 × 10^-19 coulombs).
  • m_e is the electron mass (approximately 9.10938356 × 10^-31 kilograms).
  • ε_0 is the permittivity of free space (approximately 8.8541878128 × 10^-12 farads per meter).

Navigating the Plasma Frequency Calculator

Our Plasma Frequency Calculator makes this calculation straightforward. Simply input the electron density (in per cubic meter), and the calculator will return the estimated plasma frequency.

Example Calculation

Let’s consider an example where the electron density Ne is 1x10^20 m⁻³.

By inputting this value into the calculator:

ω_p = sqrt((1x10^20 * (1.602176634 × 10^-19)²) / ((9.10938356 × 10^-31) * (8.8541878128 × 10^-12)))

The calculator computes the plasma frequency to be approximately 5.64x10^15 Hz.


The Plasma Frequency Calculator can be a handy tool for studying plasmas and understanding the effects of varying electron density on the plasma frequency. However, remember that actual plasma frequency can vary due to other factors in real-world applications. Always consult a professional for critical applications.

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