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Which of the following statements is correct? | |
A. | Mica capacitors are available in capacitance values of 5 to 20 µF [Wrong Answer] |
B. | Air capacitors have a black band to indicate the outside foil [Wrong Answer] |
C. | Electrolytic capacitors must be connected in correct polarity [Correct Answer] |
D. | Ceramic capAcitors must be connected in correct polarity [Wrong Answer] |