MCQ
For a given temperature difference, which of the following pairs will generate maximum thermo e.m.f.
  • Antimony-bismuth
  • B
    Silver-gold
  • C
    Iron-copper
  • D
    Lead-nickel

Answer

Correct option: A.
Antimony-bismuth
(a) As a rule, more the metals are separated from each other in the thermoelectric series, the greater will be the thermo emf.

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

If critical angle for a material to air is $30,$ the refractive index of the material will be
A stone of mass $1 kg$ tied to a light inextensible string of length $L=\frac{10}{3} m$ is whirling in a circular path of radius $L$ in a vertical plane. If the ratio of the maximum tension in the string to the minimum tension in the string is 4 and if $g$ is taken to be $10 m / sec ^2$, the speed of the stone at the highest point of the circle is
An achromatic combination of lenses produces
Time period of a simple pendulum will be double, if we
The potential energy of a certain spring when stretched through a distance ' $S$ is 10 joule. The amount of work (in joule) that must be done on this spring to stretch it through an additional distance ' $S$ will be
If both the object and image are at infinite distances form a refracting telescope its magnifying power will be equal to
Unit mass of a liquid with volume $V_1$ is completely changed into a gas of volume $V_2$ at a constant external pressure $P$ and temperature $T$. If the latent heat of evaporation for the given mass is $L$, then the increase in the internal energy of the system is
A sample of ideal monoatomic gas is taken round the cycle $A B C A$ as shown in the figure. The work done during the cycle is
Image
A body travels for $15 sec$ starting from rest with constant acceleration. If it travels distances $S_1, S_2$ and $S_3$ in the first five seconds, second five seconds and next five seconds respectively the relation between $S_1, S_2$ and $S_3$ is
If the body is moving in a circle of radius $r$ with a constant speed $v$, its angular velocity is