ANSWERS TO PRACTICE EXERCISES
MM5000 ............................Timing Circuits
Lesson 2...........................Applications of RC and RL Circuits
1.
cparagraph 3a, page 31
Current = Voltage/Resistance
It = 15 volts/1,000 ohms
It = 15 mA
2.
dparagraph 5, page 34
Time Constant = L/R
TC = 1 mH/1,000 ohms
TC = .001 h/1,000 ohms = 1 usec
Steady State is reached at 7 TC, or 7 microseconds
3.
aparagraph 10a, page 37
Current = Voltage/Resistance
It = 10 volts/2,000 ohms
It = 5 mA
4.
dparagraph 10a, page 37, paragraph 34, page 39
Time Constant = R x C
TC = 2,000 ohms x .005 microfarad
TC = 10 microseconds
Steady State is reached at 7 TC, or 70.0 microseconds
5.
bparagraph 14a, page 41
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