A condenser suitable for D.C. only is________?
Correct answer: D. poled aluminium electrolytic condenser
- A. metallic plate variable gang condenser
- B. metallic paper capacitor
- C. oil impregrated paper condenser
- D. poled aluminium electrolytic condenser
Explanation
A poled aluminium electrolytic capacitor is designed for one-way voltage and must not be subjected to reverse DC voltage. The other capacitor types listed can generally be used with either polarity, subject to their ratings.
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