How are photovoltaic systems safe?
What will be an ideal response?
PV systems are safe because there are no exposed electrical or moving parts that could harm anyone.
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A 30-microfarad capacitor is in parallel with a 15-microfarad capacitor. The total capacitance is _____.
a. 15 b. 30 c. 45 d. 100
Much medical progress can be attributed to the research rabbit
Indicate whether the statement is true or false.
Two technicians are discussing disc brake rotor service. Technician A says that the inner races (bearing cups) should be removed from the rotor before it is mounted on the lathe. Technician B says that a non-directional finish on the rotor surfaces can be obtained by using sandpaper. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
In a closed-lop velocity servo system, if the load increases, the motor speed ____________________ (increases, decreases), the tachometer output ____________________ (increases, decreases), and the error signal ____________________ (increases, decreases).
Fill in the blank(s) with the appropriate word(s).