Zener diodes that have a breakdown voltage of ____ V or more have a positive zener voltage-temperature coefficient, which means that the breakdown voltage increases as the temperature increases.
A. two
B. three
C. four
D. five
Answer: D
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Preload adjustments are normally checked by using a dial indicator.
Answer the following statement true (T) or false (F)
The cross liquid charge bulb at the TXV contains fluid that ____.
A. has similar characteristics to the system fluid to prevent liquid refrigerant from entering the suction line B. has different characteristics from the system fluid C. causes the valve to stay open during the off cycle D. follows the typical pressure-temperature relationship
Static electricity decreases if the humidity level in the air __________.
A. increases B. decreases
For the circuit shown in Figure P2.24, determine which components are supplying power and which are dissipating power. Also determine the amount of power dissipated and supplied.
Find:
Determine power absorbed or power delivered and corresponding amount.