Following are the readings of potential and current through a specimen when it is connected to a source of variable potential :
Voltage : `0.2V, 0.4 V, 0.6 V, 0.8V, 1V`
Current : `3mA, 5 mA, 9 mA, 13 mA, 17 mA`
From the observations, the specimen

Options

A. obeys Ohm's law and is a conductor
B. obeys Ohm's law and is an insulator
C. does not obey Ohm's law and is a semiconductor
D. obeys Ohm's law and can be conductor or semiconductor

Answer

C

Explanation

From the given readings it can be concluded that as voltage increases current increases nonlinearly.Therefore the component does not obey Ohm's law and it is a semiconductor.