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1. Determine the voltage waveform across VRK

2. RS represents a temperature-, light-, or radiation-sensitive resistor, that is, an element whose

resistance will decrease with the application of any of the three energy sources listed above

a. Write an equation for the voltage from gate to ground for the SCS.

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b. What is the voltage VGK when RS = R ?

c. Find RS to establish a turn-on voltage of 2 V if R =10 kohm.

d. When the alarm turns on, what is the current through the relay?

e. At VA = 0 V, the maximum dc current through the rate-effect resistor will be established. What is

its value?

f. When the reset button is activated, is there any reason for concern about spikes in voltage anywhere

in the network? How could they be suppressed?