A constant current source
A) delivers a load current that remains constant when the load resistance changes
B) delivers a load current that remains constant when input voltage decreases
C) delivers a load current that remains proportional to load resistance
D) all the above
A
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a. infrared b. microwave c. ultrasonic d. visible laser
The first check when answering a no-heat oil furnace call should be:
A) Checking to see if there is oil in the tank and if the oil is clean. B) Checking the cad cell circuit. C) Checking the fan switch setting. D) Checking the output of the ignition transformer.
Why do stuffing box applications require some leakage?
What will be an ideal response?
If a battery with 12 volts were connected to a series circuit that had a total resistance of 3 ohms, how much current would flow in the circuit?
A. 25 amps B. 4 amps C. 12 amps D. 36 amps