Calculate the frequency of a ujt relaxation oscillator when re is 10k ohms and ce is 0.1uf 2. suppose a square wave signal has a 65 percent duty cycle and an on-state voltage of 40 volts dc. what is the average dc voltage? if the full temperature range of an on-off heating system is from 30 to 100 degrees and the differential gap is 5 degrees, what is the deadband? if the gain of a proportional mode system is set to high, the proportional band is (narrow, wide), the response is the derivative mode provides a boost to the system if the magnitude of the error signal is 3. 4. (fast, slow), and the system is unstable. 5. if the output of a proportional mode control system oscillates, the system gain is set too 6. (high, low), its proportional band is (narrow, wide), and the response time is (fast, slow).