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- Subject
- Rectifiers and Converterselectrical-engineering-mcqs › rectifiers-and-converters
- Published
- 16 Dec 2018
- Last updated
- 28 May 2026
Explanation
Mercury is used as the cathode in arc rectifiers because it has a low ionization potential, a high atomic weight, low boiling point and specific heat, and remains liquid at room temperature. Therefore, all these factors contribute to its suitability.
More Rectifiers and Converters MCQs
Practice related questions from the same subject.
- 1.Which of the following techniques can be employed to transform an AC system into a DC system?
- 2.How can a synchronous converter be initiated for operation?
- 3.Which of the following uses are associated with direct current (D.C.) systems?
- 4.How many slip rings are present in a single-phase rotary converter?
- 5.A rotary converter serves as a combination of which two electrical machines?
- 6.What is the maximum direct current (D.C.) voltage achievable using a motor converter?
- 7.Which device among the following operates with reversible functionality?
- 8.What components does a rotary converter consist of in a single machine?
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