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Nichrome and copper wires of the same length and the same radius are connected in series. Current 'I' is passed through them. Which of the two gets heated first?
- a)Copper wire
- b)Both
- c)Nichrome wire
- d)None of these
Correct answer is option 'C'. Can you explain this answer?
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Verified Answer
Nichrome and copper wires of the same length and the same radius are c...
The two wires are of the same length and the same radius; hence, their resistance will be proportional to their resistivity. Nichrome wire is an alloy of nickel, chromium, manganese and iron and has a resistivity of 100 x 10-6ohm-m. Copper has a low resistivity of 1.62 x 10-8 ohm-m. Therefore, the Nichrome wire will get heated first. According to Joule's law of heating, the heat produced in a resistor is directly proportional to the resistance for a given current. H = I2Rt. Also, Nichrome does not oxidise easily at high temperatures. That is why, it is commonly used in electrical heating devices like electrical iron, heaters, etc.
Most Upvoted Answer
Nichrome and copper wires of the same length and the same radius are c...
Nichrome wire will get heated up quickly because its an alloy and has properties of high resistance. Also it can be seen as a real life example that copper wire are preferred to be made into wire rather using some other material.
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Nichrome and copper wires of the same length and the same radius are c...
- **Heating in Nichrome and Copper Wires**
Nichrome and copper wires have different resistivities, with Nichrome having a higher resistivity compared to copper. When current is passed through a wire, the wire heats up due to the resistance it offers to the flow of electricity.
- **Effect of Resistivity**
Nichrome wire, having a higher resistivity, will offer more resistance to the flow of current compared to copper wire of the same length and radius. This means that Nichrome wire will heat up faster than copper wire when the same current is passed through them.
- **Temperature Rise**
As a result of the higher resistance and resistivity of Nichrome wire, it will reach a higher temperature compared to copper wire when current is passed through them. This is why the Nichrome wire will get heated first in this scenario.
- **Conclusion**
In the given situation where Nichrome and copper wires of the same length and radius are connected in series and current is passed through them, the Nichrome wire will get heated first due to its higher resistivity and resistance.
Nichrome and copper wires have different resistivities, with Nichrome having a higher resistivity compared to copper. When current is passed through a wire, the wire heats up due to the resistance it offers to the flow of electricity.
- **Effect of Resistivity**
Nichrome wire, having a higher resistivity, will offer more resistance to the flow of current compared to copper wire of the same length and radius. This means that Nichrome wire will heat up faster than copper wire when the same current is passed through them.
- **Temperature Rise**
As a result of the higher resistance and resistivity of Nichrome wire, it will reach a higher temperature compared to copper wire when current is passed through them. This is why the Nichrome wire will get heated first in this scenario.
- **Conclusion**
In the given situation where Nichrome and copper wires of the same length and radius are connected in series and current is passed through them, the Nichrome wire will get heated first due to its higher resistivity and resistance.
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Nichrome and copper wires of the same length and the same radius are connected in series. Current 'I' is passed through them. Which of the two gets heated first?a)Copper wireb)Bothc)Nichrome wired)None of theseCorrect answer is option 'C'. Can you explain this answer?
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Nichrome and copper wires of the same length and the same radius are connected in series. Current 'I' is passed through them. Which of the two gets heated first?a)Copper wireb)Bothc)Nichrome wired)None of theseCorrect answer is option 'C'. Can you explain this answer? for Class 10 2024 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about Nichrome and copper wires of the same length and the same radius are connected in series. Current 'I' is passed through them. Which of the two gets heated first?a)Copper wireb)Bothc)Nichrome wired)None of theseCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 10 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Nichrome and copper wires of the same length and the same radius are connected in series. Current 'I' is passed through them. Which of the two gets heated first?a)Copper wireb)Bothc)Nichrome wired)None of theseCorrect answer is option 'C'. Can you explain this answer?.
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