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Voltage V v/s I graph is shown in the fi...

Voltage V v/s I graph is shown in the figure.

A

resistance in region I is ohmic, II & III are non-ohmic

B

resistance in region II is zero and III is ohmic

C

resistance in region II is zero and III is non-ohmic

D

in I it is ohmic, II it is non-ohmic

Text Solution

Verified by Experts

The correct Answer is:
C
In II region : `DeltaV=0`, Hence R = 0
In III region V is not directly proportional to I.
hence region III is non-ohmic.
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