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State Ohm'S Law. is It Always True? - Physics

Definition
One Line Answer
State Ohm's law. Is it always true?
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Solution

According to Ohm's law, the current flowing in a conductor is directly proportional to the potential difference across its ends provided the physical conditions and temperature of conductor remains constant.
No, it is not always true. E.g. Diode valve, junction diode etc. do not obey Ohm's law.

Concept: Ohm’s Law
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APPEARS IN

Frank ICSE Class 10 Physics Part 2
Chapter 4 Current Electricity
Exercise 4.1 | Q 7 | Page 173
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