Assertion (A): The alloys manganin and constant on are used to make standard resistors.Reason (R) : Resistivity of nichrome is maximum amongst all alloys.

Assertion (A): The alloys manganin and constant on are used to make st

1.	Assertion (A): The alloys manganin and constant on are used to make standard resistors.Reason (R) : Resistivity of nichrome is maximum amongst all alloys.
Answer» If both assertion and REASON are true and the reason is the CORRECT explanation of the assertion. If both assertion and reason are true but reason is not the correct explanation of the assertion. If assertion is true but reason is false. If the assertion is false but reason is true. Solution : Manganin and CONSTANTON are USED to make standard resistors because their thermal coefficientof resistivity is extremely small.

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Assertion (A): The alloys manganin and constant on are used to make standard resistors.Reason (R) : Resistivity of nichrome is maximum amongst all alloys.

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