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Question
Physics
Assertion: Ohm’s law is applicable for all conducting elements. Reason: Ohm’s law is a fundamental law.
Q.
Assertion :
Ohm’s law is applicable for all conducting elements.
Reason
:
Ohm’s law is a fundamental law.
4190
233
AIIMS
AIIMS 2007
Current Electricity
Report Error
A
If both assertion and reason are true and reason is the correct explanation of assertion
26%
B
If both assertion and reason are true but reason is not the correct explanation of assertion
20%
C
If assertion is true but reason is false
16%
D
If both assertion and reason are false
38%
Solution:
Both the assertion and reason are false. Ohms law is obeyed by metals for a certain range of temperature, not obeyed by superconductors, valves, diodes and semiconductors. It is not a universal law but it is purely empirical.