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Author Question: An IC optocoupler designed to allow an external object to block the light path between the ... (Read 50 times)

ahriuashd

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on: Jul 28, 2018
An IC optocoupler designed to allow an external object to block the light path between the photoemitter and the photodetector is known as a
 
  A) optical diode B) optointerrupter C) optomiser D) optointerpreter

Question 2

The 7490 decade counter is made up of two internal counters. They are
 
  A) divide-by-2 and divide-by-8. B) divide-by-2 and divide-by-5.
  C) divide-by-2 and divide-by-6. D) divide-by-2 and divide-by-4.


sultana.d

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Reply #1 on: Jul 28, 2018
Answer to Question 1

B

Answer to Question 2

B


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