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Home Q & A Board Science-Related Homework Help Engineering Electrical Engineering
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cattyson cattyson
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6 years ago
A relay is a device that ________.
 
  A) isolates the actuating signal from the control signal
  B) uses an electromagnet to open and close contacts
  C) has a coil to actuate some contacts that control other circuits
  D) all of these
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HadajahpopeHadajahpope
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6 years ago
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cattyson Author
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6 years ago
Just got PERFECT on my quiz
halyna
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Yesterday
You make an excellent tutor!
annakc
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2 hours ago
Good timing, thanks!
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