Question

В цепи параллельно соединены катушка индуктивности и конденсатор При частоте F=50 Гц XL=50 Ом, Xc=450 Ом. При какой частоте ток источника будет равен нулю?

Answer 1

Надо учиться самому всё делать

Answer 2

Calculation of the Current Frequency at which the Source Current will be Zero

To determine the frequency at which the source current will be zero in a parallel circuit consisting of an inductive coil and a capacitor, we need to consider the reactance of both components.

The reactance of an inductive coil (XL) is given by the formula:

XL = 2πfL.

Where: - XL is the reactance of the inductive coil, - f is the frequency of the current, and - L is the inductance of the coil.

The reactance of a capacitor (XC) is given by the formula:

XC = 1 / (2πfC).

Where: - XC is the reactance of the capacitor, - f is the frequency of the current, and - C is the capacitance of the capacitor.

In the given circuit, XL = 50 Ω and XC = 450 Ω.

To find the frequency at which the source current will be zero, we need to equate the reactances of the inductive coil and the capacitor:

XL = XC.

Substituting the given values, we have:

50 = 1 / (2πfC).

Simplifying the equation, we get:

f = 1 / (2π × 50 × 450).

Calculating the value, we find:

f ≈ 0.000141 Hz.

Therefore, the frequency at which the source current will be zero is approximately 0.000141 Hz.

Please note that the given frequency of 50 Hz does not result in a zero source current.

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