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In electrolytic capacitors positive terminal is
- a)one on which aluminium oxide film is formed
- b)none of the above.
- c)either of the two terminals
- d)one on which aluminium oxide film is not formed
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
In electrolytic capacitors positive terminal isa)one on which aluminiu...
Explanation:Aluminium electrolytic capacitors have the Aluminium foil anode (positive terminal) which is etched and covered with a layer of Aluminium Oxide which acts as a dielectric. The whole assembly is covered using a paper separator soaked in electrolyte such as, Borax or Glycol and covered by Aluminium foil which acts as cathode ( negative electrode)
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In electrolytic capacitors positive terminal isa)one on which aluminiu...
Explanation:
Electrolytic capacitors are polarized capacitors, which means they have a positive and a negative terminal. These capacitors are constructed using an electrolyte, which is a liquid or gel-like substance that conducts electricity. When a voltage is applied across the capacitor, an oxide layer is formed on the surface of the anode, which acts as the dielectric.
The positive terminal of an electrolytic capacitor is the one on which the aluminium oxide film is formed. This is because the anode of the capacitor is made of aluminium, which reacts with the electrolyte to form the oxide layer. The oxide layer is an insulator and prevents the flow of current through the capacitor.
The negative terminal of the electrolytic capacitor is the one on which the electrolyte is in contact with the aluminium foil. This terminal is usually marked with a stripe or a minus sign to indicate its polarity.
In summary, the positive terminal of an electrolytic capacitor is the one on which the aluminium oxide film is formed, while the negative terminal is the one on which the electrolyte is in contact with the aluminium foil.
Key Points:
- Electrolytic capacitors are polarized capacitors.
- The positive terminal of an electrolytic capacitor is the one on which the aluminium oxide film is formed.
- The negative terminal of an electrolytic capacitor is the one on which the electrolyte is in contact with the aluminium foil.
Electrolytic capacitors are polarized capacitors, which means they have a positive and a negative terminal. These capacitors are constructed using an electrolyte, which is a liquid or gel-like substance that conducts electricity. When a voltage is applied across the capacitor, an oxide layer is formed on the surface of the anode, which acts as the dielectric.
The positive terminal of an electrolytic capacitor is the one on which the aluminium oxide film is formed. This is because the anode of the capacitor is made of aluminium, which reacts with the electrolyte to form the oxide layer. The oxide layer is an insulator and prevents the flow of current through the capacitor.
The negative terminal of the electrolytic capacitor is the one on which the electrolyte is in contact with the aluminium foil. This terminal is usually marked with a stripe or a minus sign to indicate its polarity.
In summary, the positive terminal of an electrolytic capacitor is the one on which the aluminium oxide film is formed, while the negative terminal is the one on which the electrolyte is in contact with the aluminium foil.
Key Points:
- Electrolytic capacitors are polarized capacitors.
- The positive terminal of an electrolytic capacitor is the one on which the aluminium oxide film is formed.
- The negative terminal of an electrolytic capacitor is the one on which the electrolyte is in contact with the aluminium foil.
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In electrolytic capacitors positive terminal isa)one on which aluminiu...
Electrolytic capacitors are polarized components due to their asymmetrical construction and must be operated with a higher voltage (ie, more positive) on the anode than on the cathode at all times. For this reason the anode terminal is marked with a plus sign and the cathode with a minus sign.
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In electrolytic capacitors positive terminal isa)one on which aluminium oxide film is formedb)none of the above.c)either of the two terminalsd)one on which aluminium oxide film is not formedCorrect answer is option 'A'. Can you explain this answer? for Class 12 2025 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about In electrolytic capacitors positive terminal isa)one on which aluminium oxide film is formedb)none of the above.c)either of the two terminalsd)one on which aluminium oxide film is not formedCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 12 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In electrolytic capacitors positive terminal isa)one on which aluminium oxide film is formedb)none of the above.c)either of the two terminalsd)one on which aluminium oxide film is not formedCorrect answer is option 'A'. Can you explain this answer?.
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