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Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:
Assertion (A): Alloys are commonly used in electrical heating devices like electric iron and heater.
Reason (R): Resistivity of an alloy is generally higher than that of its constituent metals but the alloys have low melting points then their constituent metals.
- a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).
- b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).
- c)Assertion (A) is true but reason (R) is false.
- d)Assertion (A) is false but reason (R) is true.
- e)Both Assertion and Reason are false
Correct answer is option 'C'. Can you explain this answer?
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Directions: In the following questions, a statement of assertion (A) ...
Alloys are held for electrical heating devices due to their light resistivity and high melting point compared to constituent metals.
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Directions: In the following questions, a statement of assertion (A) ...
Assertion (A): Alloys are commonly used in electrical heating devices like electric iron and heater.
Reason (R): Resistivity of an alloy is generally higher than that of its constituent metals but the alloys have low melting points than their constituent metals.
Explanation:
Alloys are commonly used in electrical heating devices like electric iron and heater because of the following reasons:
1. Enhanced Resistivity: Alloys have higher resistivity compared to their constituent metals. This means that they offer more resistance to the flow of electric current. This property is desirable in electrical heating devices as it helps to convert electrical energy into heat energy more efficiently.
2. High Melting Point: Contrary to the reason given in the statement, alloys generally have higher melting points than their constituent metals. This property is important for electrical heating devices as it allows the alloy to withstand high temperatures without melting or deforming.
3. Improved Strength and Durability: Alloys are created by combining different metals, which results in a material that has improved strength and durability compared to its constituent metals. This is important for electrical heating devices as they are subjected to high temperatures and mechanical stress.
4. Resistance to Oxidation: Alloys often have better resistance to oxidation compared to pure metals. This means that they are less likely to corrode or degrade when exposed to air or moisture. This property is beneficial for electrical heating devices as it helps to maintain their performance and longevity.
Conclusion:
In conclusion, assertion (A) is true as alloys are commonly used in electrical heating devices. However, reason (R) is false as alloys generally have higher melting points than their constituent metals. Therefore, the correct answer is option (C) - Assertion (A) is true but reason (R) is false.
Reason (R): Resistivity of an alloy is generally higher than that of its constituent metals but the alloys have low melting points than their constituent metals.
Explanation:
Alloys are commonly used in electrical heating devices like electric iron and heater because of the following reasons:
1. Enhanced Resistivity: Alloys have higher resistivity compared to their constituent metals. This means that they offer more resistance to the flow of electric current. This property is desirable in electrical heating devices as it helps to convert electrical energy into heat energy more efficiently.
2. High Melting Point: Contrary to the reason given in the statement, alloys generally have higher melting points than their constituent metals. This property is important for electrical heating devices as it allows the alloy to withstand high temperatures without melting or deforming.
3. Improved Strength and Durability: Alloys are created by combining different metals, which results in a material that has improved strength and durability compared to its constituent metals. This is important for electrical heating devices as they are subjected to high temperatures and mechanical stress.
4. Resistance to Oxidation: Alloys often have better resistance to oxidation compared to pure metals. This means that they are less likely to corrode or degrade when exposed to air or moisture. This property is beneficial for electrical heating devices as it helps to maintain their performance and longevity.
Conclusion:
In conclusion, assertion (A) is true as alloys are commonly used in electrical heating devices. However, reason (R) is false as alloys generally have higher melting points than their constituent metals. Therefore, the correct answer is option (C) - Assertion (A) is true but reason (R) is false.
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Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion (A): Alloys are commonly used in electrical heating devices like electric iron and heater.Reason (R): Resistivity of an alloy is generally higher than that of its constituent metals but the alloys have low melting points then their constituent metals.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.e)Both Assertion and Reason are falseCorrect answer is option 'C'. Can you explain this answer?
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Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion (A): Alloys are commonly used in electrical heating devices like electric iron and heater.Reason (R): Resistivity of an alloy is generally higher than that of its constituent metals but the alloys have low melting points then their constituent metals.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.e)Both Assertion and Reason are falseCorrect 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 Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion (A): Alloys are commonly used in electrical heating devices like electric iron and heater.Reason (R): Resistivity of an alloy is generally higher than that of its constituent metals but the alloys have low melting points then their constituent metals.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.e)Both Assertion and Reason are falseCorrect 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 Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion (A): Alloys are commonly used in electrical heating devices like electric iron and heater.Reason (R): Resistivity of an alloy is generally higher than that of its constituent metals but the alloys have low melting points then their constituent metals.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.e)Both Assertion and Reason are falseCorrect answer is option 'C'. Can you explain this answer?.
Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion (A): Alloys are commonly used in electrical heating devices like electric iron and heater.Reason (R): Resistivity of an alloy is generally higher than that of its constituent metals but the alloys have low melting points then their constituent metals.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.e)Both Assertion and Reason are falseCorrect 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 Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion (A): Alloys are commonly used in electrical heating devices like electric iron and heater.Reason (R): Resistivity of an alloy is generally higher than that of its constituent metals but the alloys have low melting points then their constituent metals.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.e)Both Assertion and Reason are falseCorrect 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 Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion (A): Alloys are commonly used in electrical heating devices like electric iron and heater.Reason (R): Resistivity of an alloy is generally higher than that of its constituent metals but the alloys have low melting points then their constituent metals.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.e)Both Assertion and Reason are falseCorrect answer is option 'C'. Can you explain this answer?.
Solutions for Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion (A): Alloys are commonly used in electrical heating devices like electric iron and heater.Reason (R): Resistivity of an alloy is generally higher than that of its constituent metals but the alloys have low melting points then their constituent metals.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.e)Both Assertion and Reason are falseCorrect answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 10.
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Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion (A): Alloys are commonly used in electrical heating devices like electric iron and heater.Reason (R): Resistivity of an alloy is generally higher than that of its constituent metals but the alloys have low melting points then their constituent metals.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.e)Both Assertion and Reason are falseCorrect answer is option 'C'. Can you explain this answer?, a detailed solution for Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion (A): Alloys are commonly used in electrical heating devices like electric iron and heater.Reason (R): Resistivity of an alloy is generally higher than that of its constituent metals but the alloys have low melting points then their constituent metals.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.e)Both Assertion and Reason are falseCorrect answer is option 'C'. Can you explain this answer? has been provided alongside types of Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion (A): Alloys are commonly used in electrical heating devices like electric iron and heater.Reason (R): Resistivity of an alloy is generally higher than that of its constituent metals but the alloys have low melting points then their constituent metals.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.e)Both Assertion and Reason are falseCorrect answer is option 'C'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion (A): Alloys are commonly used in electrical heating devices like electric iron and heater.Reason (R): Resistivity of an alloy is generally higher than that of its constituent metals but the alloys have low melting points then their constituent metals.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.e)Both Assertion and Reason are falseCorrect answer is option 'C'. Can you explain this answer? tests, examples and also practice Class 10 tests.
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