Ohms Law is not obeyed by :

electrolytes

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discharge tube

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vacuum tube

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all of the above

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Solution

The correct option is D all of the above
A vacuum tube is a non-linear circuit. Its conductance changes with temperature, its current and voltage graph is not a straight line which implies that vacuum tube does not obey Ohm's Law.

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Ohms Law is not obeyed by :

The correct option is D all of the aboveA vacuum tube is a non-linear circuit. Its conductance changes with temperature, its current and voltage graph is not a straight line which implies that vacuum tube does not obey Ohm's Law.

The correct option is D all of the above
A vacuum tube is a non-linear circuit. Its conductance changes with temperature, its current and voltage graph is not a straight line which implies that vacuum tube does not obey Ohm's Law.