railway RRB Technician Grade 1 Mock Test 2024 Physics Current, Resistance and Electricity Resistance and Resistivity
Read the following statements carefully and select the correct option :
Assertion (A) : The resistance of a metal increases with increasing temperature.
Reason (R) : The number of conduction electrons increases with temperature.
1
Both A and R are true and R is the correct explanation for A.
2
Both A and R are true but R is not the correct explanation for A.
3
A is true but R is false.
4
Both A and R are false.