Question

Which of the following are given as examples of non-linear elements to which Ohm's law does not apply?

Options

• Copper wires, resistors, and ammeters

• Only gallium arsenide (GaAs)

• Only electrolytes and vacuum tubes

• Thermistors, junction diodes, electrolytes, and vacuum tubes

Answer 1

The examples of non-linear elements, in which current is not directly proportional to voltage, are thermistors, junction diodes, electrolytes, and vacuum tubes. In all of these, resistance is not constant and the V-I graph is curved.