For Part I $($Answer after reading the handout$)$

$1.$ Where could we use RC transient circuits? Give at least one example.

For Part II $($Answer after reading the handout$)$

$2.$ Where could we use RL transient circuits? Give at least one example.

For Parts II and III $($Answer after reading the handout$)$

$3.$ How do you define the duty cycle of a rectangular waveform? Answer

with an equation.

Answer after reading the handout

$4.$ What is Pulse$-$Width Modulation $($PWM$)?$ Hint: how does it relate to Duty

Cycle?