MCQ
Constantan wire is used in making standard resistances because its.
  • A
     Specific resistance is low
  • B
     Density is high
  •  Temperature coefficient of resistance is negligible
  • D
    Melting point is high

Answer

Correct option: C.
 Temperature coefficient of resistance is negligible
 Temperature coefficient of resistance is negligible

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

A convex lens is made of a material having refractive index $1.2$. Both the surfaces of the lens are convex. If it is dipped into water $(\mu=1.33),$ it will behave like:
Among the two interfering monochromatic sources A and B; A is ahead of B in phase by 66°. If the observation be taken from point P, such that PB – PA = l/4. Then the phase difference between the waves from A and B reaching P is
Faraday law of electrolysis indirectly shows
The ratio of the wavelengths for $2 \rightarrow 1$ transition in $Li^{++} , He^+$ and $H$ is
A charge $q$  is spread uniformly over an insulated loop of radius $r$ . If it is rotated with an angular velocity $\omega $ with respect to normal axis then the magnetic moment of the loop is
The electric field intensity just sufficient to balance the earth's gravitational attraction on an electron will be: (given mass and charge of an electron respectively are $9.1 \times 10^{-31}\,kg$ and $1.6 \times$ $10^{-19}\,C$.)
In an $LRC$ series circuit at resonance current in the circuit is $10\sqrt 2\  A$. If now frequency of the source is changed such that now current lags by $45^o$ than applied voltage in the circuit , which of the following is correct
What is the use of a Van de Graff generator?
A 3volt battery with negligible internal resistance is connected in a circuit as shown in the figure. The current I, in the circuit will be
The total power content of an $AM$ wave is $1500\, W.$ For $100\%$ modulation, the power transmitted by the carrier is........$W$