Electronics - Thyristors and Tranducers

Exercise :: Thyristors and Tranducers - General Questions

6. 

A UJT has:

A. two base leads
B. one emitter lead
C. two emitter leads and one base lead
D. one emitter lead and two base leads

Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.

7. 

The only way to close an SCR is with:

A. a trigger input applied to the gate
B. forward breakover voltage
C. low-current dropout
D. valley voltage

Answer: Option B

Explanation:

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8. 

What is an SCR?

A. a PNPN thyristor with 3 terminals
B. a PNPN thyristor with 4 terminals
C. a PNP thyristor with 3 terminals
D. an NPN thyristor with 3 terminals

Answer: Option A

Explanation:

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9. 

What type of application would use a photovoltaic cell?

A. an automobile horn
B. a TI 92 calculator
C. a magnetic field detector
D. a remote power source

Answer: Option D

Explanation:

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10. 

Which is the seven-segment display?

A. mca14_10013a1.gif
B. mca14_10013b1.gif
C. mca14_10013c1.gif
D. mca14_10013d1.gif

Answer: Option A

Explanation:

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