A single-phase voltage controller, using two SCRs in antiparallel,

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A single-phase voltage controller, using two SCRs in antiparallel, is found to be operating as a controlled rectifier. This is because—

1. load is R and pulse gating is used
2. load is R and high-frequency carrier gating is used
3. load is RL and pulse gating is used
4. load is RL and continuous gating is used

Correct Option: C

NA