Question

For a chosen non-zero value of voltage, there can be more than one value of current in:

• A. Copper wire
• B. Thermistor
• C. nichrome wire
• D. Manganine wire

Answer 1

The correct option is B Thermistor

Thermistor are made up of substance with high $\alpha$ , which is very much sensitive to temperature thereby a slight change in temperature varies its resistance with huge amount.

hence making more than one value of current possible for chosen non-zero value of voltage.