Assertion :The temperature of a metal wire rises when an electric current is passed through it. Reason: Collision of metal atoms with each other releases heat energy.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is C Assertion is correct but Reason is incorrect
We have a relation for a conductor carrying current.
$H = I^{2} R T$
$I$ ; current passing through the wire
$R$ ; the resistance of the wire
$T$ ; time
$H$ ; Heat (which causes due to rising in temperature)
Due to resistance which resists the motion of electrons. The electron bump into atoms on the outside of the wire. Some of their kinetic energy is given to the atoms as thermal energy. This thermal energy of atoms produces heat.

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Similar questions

Assertion (A) All collision of reactant molecules lead to product formation.

Reason (R) Only those collisions in which molecules have correct orientation and sufficient kinetic energy lead to compound formation.

(a) Both assertion and reason are correct and the reason is correct explanation of assertion
(b) Both assertion and reason are correct, but reason does not explain assertion.
(c) Assertion is correct, but reason is incorrect
(d) Both assertion and reason are incorrect
(e) Assertion is incorrect but reason is correct.

Q. Assertion: The compressibility factor for

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and

H e

(1 + \frac{P b}{R T})

Reason: The compressibility factor for

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Assertion (A) Rate constant determined from Arrhenius equation are fairly accurate for simple as well as complex molecules.

Reason (R) Reactant molecules undergo chemical change irrespective of their orientation during collision.

Q. Assertion : Two electrons of helium atom are placed in only one shell but three electrons of lithium need two shells.
Reason: A shell can have maximum

{2n}^{2}

electrons.

Assertion – The non-fusible impurities present in iron ore are removed by $C a C O_{3}$ .

Reason: $C a C O_{3}$ which decomposes into $C a O$ and $C O_{2}$ . The $C a O$ formed reacts with $S i O_{2}$ to remove silica

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