| 1. | An SCR has ? | |
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one terminal
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two terminals
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three terminals
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four terminals
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Report Question| 2. | The diac is a ...... thyristor and a triac is ..... thyristor ? | |
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unidirectional, bidirectional
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bidirectional, unidirectional
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unidirectional, also unidirectional
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bidirectional, also bidirectional
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| 3. | Varactor is a ? | |
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non-linear inductor
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non-linear capacitor
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non-linear resistor
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variable resistor
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| 4. | .......... does not have negative resistance characteristics ? | |
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FET
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SCR
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UJT
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Tunnel
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| 5. | ...... diode has two gates ? | |
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Diac
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Triac
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SCS
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SUS
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| 6. | SCS will turn off by applying ? | |
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negative pulse to the cathode gate
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negative pulse to the anode
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positive pulse to the anode gate
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all of the above
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| 7. | ........ diode is suitable for very low power oscillators only ? | |
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IMPATT
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Tunnel
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Gunn
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All of the above
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| 8. | ...... is a three layer device ? | |
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Triac
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SUS
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Diac
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SCS
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| 9. | When the gate current of an SCR in increased, the forward breakdown voltage will ? | |
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not be affected
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decrease
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increase
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become zero
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| 10. | With reference to a triac which of the following statements is correct ? | |
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It conducts when triggered in one direction
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It conducts when not triggered
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It conducts when not triggered in both directions
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None of the above
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