The metal rectifiers are preferred to valve rectifiers due to which of the following advantages ?
Correct answer: C. Both (A) and (B)
- A. They are mechanically strong
- B. They do not require any voltage for filament heating
- C. Both (A) and (B)
- D. None of the above
Explanation
Metal rectifiers are rugged because they have no fragile vacuum envelope, and they require no filament-heating supply. Therefore both listed advantages apply.
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