A. zero
B. negative
C. positive
D. about 2 ohms per degree
Related Mcqs:
- Temperature co-efficient of resistance is expressed in terms of __________?
- Two copper conductors have equal length. The cross-sectional area of one conductor is four times that of the other. If the conductor having smaller cross-sectional area has a resistance of 40 ohms the resistance of other conductor will be __________?
- The filament of an electric bulb is made of __________?
- An electric filament bulb can be worked from __________?
- A closed switch has a resistance of __________?
- Which of the following material has nearly zero temperature co-efficient of resistance?
- Which of the following materials has a negative temperature co-efficient of resistance?
- Three resistances of 10 ohms, 15 ohms and 30 ohms are connected in parallel. The total resistance of the combination is __________?
- A light bulb draws 300 mA when the voltage across it is 240 V. The resistance of the light bulb is __________?
- Roots of a plant show______________??
