NEET Physics Resistance & Resistivity Assertion Reason Question
Assertion (A): The resistance of a conductor increases with increase in temperature.
Reason (R): The resistivity of metals typically increases with temperature due to increased scattering of conduction electrons.
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.
Correct Answer
Detailed Explanation
The resistivity of metals increases with temperature because the atomic lattice vibrations increase, causing more scattering of conduction electrons. This leads to an increase in resistance.
Found an issue with this question?
Related Questions
More from Resistance & Resistivity
More from
Consider a diagram showing a rectangular slab of length \( l \) and area of cross-section \( A \). If the resistance \( R \) of the slab is given by t...
Assertion (A): The equivalent emf of two cells in parallel is the sum of their emfs divided by the sum of their internal resistances. | Reason (R): Th...
Which of the following statements best defines when a conducting material obeys Ohm's law?