1. RC Timing Circuits

Try these first

1. 1.

   What does τ represent in an RC circuit?

   Hint

   Think about how resistance and capacitance relate to timing.

2. 2.

   Name one application of RC timing circuits.

   Hint

   Consider where you have seen timed events.

3. 3.

   What does τ stand for in RC timing circuits?

   • Time Interval
   • Time Constant
   • Resistance

   Hint

   Think about how this relates to charging and discharging.

4. 4.

   True or False: RC timing circuits can only be used for pulse generation.

   • True
   • False

   Hint

   Recall the various uses mentioned earlier.

5. 5.

   Calculate the time constant for an RC circuit with R = 220 kΩ and C = 10 µF. How would you adjust R or C to double the time constant?

   Hint

   Remember that τ = RC and doubling one affects the other too.

6. 6.

   Design an RC circuit that has a time delay of 15 seconds. Discuss the practical considerations when choosing R and C.

   Hint

   Make sure to use reasonable standard component values to achieve desired time.