Which of these relation holds good for an Ohmic conductor?(a) V-I relationship is non-linear(b) The straight-line V-I graph pass through the origin(c) V-I relationship is non-unique(d) V-I relationship depends on the sign of V for the same absolute value of VI got this question during an online interview.The doubt is from Current Electricity topic in section Current Electricity of Physics – Class 12

Which of these relation holds good for an Ohmic conductor?(a) V-I rela

1.	Which of these relation holds good for an Ohmic conductor?(a) V-I relationship is non-linear(b) The straight-line V-I graph pass through the origin(c) V-I relationship is non-unique(d) V-I relationship depends on the sign of V for the same absolute value of VI got this question during an online interview.The doubt is from Current Electricity topic in section Current Electricity of Physics – Class 12
Answer» Correct option is (b) The straight-LINE V-I graph PASS through the origin To explain: The conductors which obey Ohm’s LAW are called Ohmic conductors. The linear relationship between voltage and current for these conductors hold good. The resistance (R=\(\FRAC {V}{I}\)) is independent of the current through the conductor. The magnitude of current changes linearly with voltage. Hence the V-I graph for ohmic conductors is a straight line PASSING through the origin.

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