What statement best describes the action of a zener diode?
A) Zener diodes regulate voltage levels below their minimum forward bias
B) Zener diodes are used mostly in tuning circuits
C) Zener diodes regulate voltage upon exceeding reverse breakdown voltage
D) When the diode is biased into saturation, it tends to regulate voltage because of it's bulk resistance
C
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Answer the following statement(s) true (T) or false (F)
1. Circuit breakers are sometimes used as switches for lighting in a building. 2. Arc-fault interrupters are smaller than standard circuit breakers. 3. If two conductors with voltage between them are accidentally connected together, arcing generally will occur. 4. The rules for mobile homes and manufactured homes are now the same as for other dwellings. 5. There is a new requirement that all switchboards and panelboards in other than one-family and two family dwellings be marked to indicate the device or equipment where the power of a feeder originates.
The optical multiplexer and the router are similar in that the signal has to be converted into an electrical signal before the packet is cracked
Indicate whether the statement is true or false
Consider a system with a microprocessor (point 1 ) whose data bus connects (point 2 ) to an input/output device (point 3). At which point is a three-state buffer required?
A) point 1 B) points 1 and 2 C) point 2 D) point 3
When is it necessary to connect gauges onto a system?
What will be an ideal response?