A silicon controlled racitifier (SCR) is a ____________?
Correct answer: B. Device with three junction
- A. Unijunction device
- B. Device with three junction
- C. Device with four junction
- D. None of the above
Explanation
An SCR contains four layers, PNPN, and therefore has three internal PN junctions. Its three external terminals are anode, cathode and gate, which should not be confused with its three junctions.
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