Description

1. 3cos(20t + 10◦) − 5cos(20t− 30◦)
2. 40sin50t + 30cos(50t− 45◦)
3. 20sin400t + 10cos(400t + 60◦) − 5sin(400t− 20◦)
2. In the following circuit, calculate Zeq and use it to find the current I of the source.

3. Find io in the following circuit.

4. At ω = 103 rad/s, find the impedance and admittance of the following circuits:
Z 12.5 uF Z 10 mH