Page 582 - index

§ 2. ɐɢɤɥɞɿԙ ɧɟɝɿɡɝɿ ɫɢɩɚɬɬɚɦɚɥɚɪɵ
Ⱥɣɧɚɥɵɩ ɬԝɪԑɚɧ ɛɿɥiɤɤɟ ɤԛɲɿ ԥɫɟɪ ɟɬɫɿɧ (3-ɫɭɪɟɬ). Ȼԝɥ ɤɟɡɞɟ, ɛɿɥɿɤɬɟ
ɰɢɤɥɦɟɧ ԧɡɝɟɪɟɬɿɧ ɤɟɪɧɟɭ ɩɚɣɞɚ ɛɨɥɚɞɵ, ԧɣɬɤɟɧɿ ɚɣɧɚɥɵɩ ɬԝɪԑɚɧ ɛɿɥɿɤɬɿԙ
ԕɚɛɚɬɬɚɪɵ ɛɿɪɟɫɟ ɫɨɡɵɥɵɩ, ɛɿɪɟɫɟ ɫɵԑɵɥɵɩ ɠԝɦɵɫ ɿɫɬɟɣɞɿ.

3-ɫɭɪɟɬ

ȿɧɞɿ ɨɫɵ ɛɿɥɿɤɬɿԙ ɤԧɥɞɟɧɟԙ ԕɢɦɚɫɵɧ ԛɥɤɟɣɬɿɩ ɤԧɪɫɟɬɟɣɿɤ (4 ɚ-ɫɭɪɟɬ).

Ԕɢɦɚɧɵԙ Ⱥ ɧԛɤɬɟɫɿɧɞɟɝɿ ɤɟɪɧɟɭɞɿ ɬɚɛɭ ԛɲɿɧ ɢɿɥɭɞɟɝɿ ɮɨɪɦɭɥɚɧɵ
ԕɨɥɞɚɧɚɦɵɡ, ɹԑɧɢ

VA Mɢ ˜ ɭ . (1)
Jx

Ԕɢɦɚɧɵԙ Ⱥ ɧԛɤɬɟɫiɧɟɧ ɛɟɣɬɚɪɚɩ ɨɫɶɤɟ ( x ) ɞɟɣiɧɝi ԕɚɲɵԕɬɵԕ y

ɫɢɧɭɫɨɢɞɚ ɬԛɪiɧɞɟ ԧɡɝɟɪiɩ ɨɬɵɪɚɞɵ (4 Ω-ɫɭɪɟɬ), ɹԑɧɢ

y D SinZ ˜ t . (2)
2

Ȼԝɥ ɠɟɪɞɟɝi

Z – ɛiɥiɤ ɚɣɧɚɥɭɵɧɵԙ ɛԝɪɵɲɬɵԕ ɠɵɥɞɚɦɞɵԑɵ;
t – ɭɚԕɵɬ.

ɋɨɧɵɦɟɧ, 4-ɫɭɪɟɬ

V t P ˜a ˜ D SinZ ˜ t . (3)
2J
Ɍiɤ ɤɟɪɧɟɭɞiԙ (ı) ɚɦɩɥɢɬɭɞɚɫɵ: x

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