103年 - 103 國立中山大學_碩士班招生考試_電機系(丁組)：電路學#108265

1.(20pt) Find i(t) and v(t) for t＞0 in Fig. 1, where u(t) is unit step function.

(1) RMS current. (5pt)

(2) Average power consumption. (5pt)

(3) Power factor. (10pt)

4. (10pt) Find Vo and reactive power consumption on the mutual inductance in Fig. 3.

5. (10pt) Calculate power consumption on the resistor in Fig. 4. If one of the diodes, D, is open, re- calculate the power consumption.

1. Find average inductor current.(5pt)

2. Find average input current. (5pt)

3. Find RMS capacitor current. (10pt)