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Which of these is a source of direct current (DC)?
- a)Electric generator
- b)Solar cell
- c)Alternating current mains
- d)Transformer
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
Which of these is a source of direct current (DC)?a)Electric generator...
Solar cells produce direct current (DC). In contrast, an electric generator often produces alternating current (AC).
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Which of these is a source of direct current (DC)?a)Electric generator...
Understanding Direct Current (DC)
Direct current (DC) is a type of electrical current that flows in one direction only. It is commonly used in various applications, including batteries and solar cells. Let's explore the options provided to understand why a solar cell is the correct answer.
Options Analysis
- Electric Generator:
- Generators can produce both AC (alternating current) and DC, depending on their design. However, most conventional generators produce AC, which can be converted to DC using a rectifier.
- Solar Cell:
- A solar cell directly converts sunlight into electricity in the form of DC. This is the primary reason it is considered a source of DC. The output is stable and flows in one direction, making it ideal for charging batteries and powering DC devices.
- Alternating Current Mains:
- The mains electricity supply in homes typically provides AC, which alternates the direction of flow. Therefore, it cannot be classified as a source of DC.
- Transformer:
- A transformer is used to change the voltage of AC electricity. It does not generate electricity itself and only works with AC, further confirming it is not a source of DC.
Conclusion
Among the options given, the solar cell is the only one that consistently produces direct current. Its ability to convert light energy into electrical energy in one direction makes it a reliable source of DC, essential for many modern technologies.
Direct current (DC) is a type of electrical current that flows in one direction only. It is commonly used in various applications, including batteries and solar cells. Let's explore the options provided to understand why a solar cell is the correct answer.
Options Analysis
- Electric Generator:
- Generators can produce both AC (alternating current) and DC, depending on their design. However, most conventional generators produce AC, which can be converted to DC using a rectifier.
- Solar Cell:
- A solar cell directly converts sunlight into electricity in the form of DC. This is the primary reason it is considered a source of DC. The output is stable and flows in one direction, making it ideal for charging batteries and powering DC devices.
- Alternating Current Mains:
- The mains electricity supply in homes typically provides AC, which alternates the direction of flow. Therefore, it cannot be classified as a source of DC.
- Transformer:
- A transformer is used to change the voltage of AC electricity. It does not generate electricity itself and only works with AC, further confirming it is not a source of DC.
Conclusion
Among the options given, the solar cell is the only one that consistently produces direct current. Its ability to convert light energy into electrical energy in one direction makes it a reliable source of DC, essential for many modern technologies.
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Question Description
Which of these is a source of direct current (DC)?a)Electric generatorb)Solar cellc)Alternating current mainsd)TransformerCorrect answer is option 'B'. Can you explain this answer? for Class 6 2025 is part of Class 6 preparation. The Question and answers have been prepared according to the Class 6 exam syllabus. Information about Which of these is a source of direct current (DC)?a)Electric generatorb)Solar cellc)Alternating current mainsd)TransformerCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 6 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of these is a source of direct current (DC)?a)Electric generatorb)Solar cellc)Alternating current mainsd)TransformerCorrect answer is option 'B'. Can you explain this answer?.
Which of these is a source of direct current (DC)?a)Electric generatorb)Solar cellc)Alternating current mainsd)TransformerCorrect answer is option 'B'. Can you explain this answer? for Class 6 2025 is part of Class 6 preparation. The Question and answers have been prepared according to the Class 6 exam syllabus. Information about Which of these is a source of direct current (DC)?a)Electric generatorb)Solar cellc)Alternating current mainsd)TransformerCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 6 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of these is a source of direct current (DC)?a)Electric generatorb)Solar cellc)Alternating current mainsd)TransformerCorrect answer is option 'B'. Can you explain this answer?.
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