Advertisements
Advertisements
Question
Assertion (A): For electrical heating devices like electric iron and heater, alloys are used.
Reason (R): Alloys have a greater resistance and low melting point.
Options
Both A and R are true and R is the correct explanation of A.
Both A and R are true but R is not the correct explanation of A.
A is true but R is false.
A is false but R is true.
MCQ
Assertion and Reasoning
Advertisements
Solution
Both A and R are true but R is not the correct explanation of A.
Explanation:
The assertion is true because alloys such as nichrome are used in heating devices. The reason is also true as a general property of alloys, but it does not correctly explain the choice for heating elements, which require high resistance and high melting point.
shaalaa.com
Is there an error in this question or solution?
