Which condition causes the output voltage of a Hall-effect device to be produced?
A. detecting a target
B. not detecting a target
Answer: A
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Answer the following statement(s) true (T) or false (F)
1. Motors and generators are look-alikes with their armature, field poles, commutators, and such, and where they differ is in the opposite application of electromagnetism. 2. The generated emf is a measure of the useful mechanical energy obtained from the neutrons passing through the armature. 3. Wave windings require only four parallel paths through the armature in one complete wave winding, regardless of the number of brushes. 4. To counteract the warping of the magnetic field, large AC motors are often built with interpoles, or commutating poles. 5. When the torque increases to meet the new load demand, the speed will readjust itself; thus, the motor maintains a fairly constant speed.
What is the common range of light intensity applied in a greenhouse from supplemental lamps such as low pressure sodium lamps for purposes of increasing photosynthesis in potted ornamental crops?
What will be an ideal response?
Ethenet receivers synchronize their clocks to that of the transmitter using the frame's ________
A) frame check sequence B) start of frame delimiter C) preamble D) synch pulse
A square plot has a perimeter of 64 meters. How long is one side?
Fill in the blank(s) with the appropriate word(s).