Exercise :: Power Electronics - Section 1
| 41. | The number of leads in an SCR are : |
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Answer: Option B Explanation: Anode, cathode and gate. |
| 42. | In a single phase full wave converter (M-2 connection) feeding on R - L load, the input voltage is v = Vm sin ωt. The expression for dc output voltage is |
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Answer: Option C Explanation: Due to inductive load the period of conduction is a to p + a in each half cycle. |
| 43. | A thyristor has a turn on time of 6 μs. If the anode circuit is inductive, the turn on time will be |
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Answer: Option C Explanation: Inductive load increases the turn on time. |
| 44. | The total number of leads in reverse conducting thyristor is |
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Answer: Option B Explanation:
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| 45. | Assertion (A): A TRIAC is a bidirectional SCR. Reason (R): A TRIAC is a four layers 3 terminal device and can conduct in both directions. |
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Answer: Option A Explanation: Since a TRIAC can conduct in both directions it is bi directional SCR. |