Chapter_pending — JEE Main PYQs

Match the List-I with List-II

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(1) A-IV,B-III,C-I,D-II
(2) A-III,B-IV,C-II,D-I
(3) A-I,B-III,C-IV,D-II
(4) A-III,B-IV,C-I,D-II

Match the List-I with List-II

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(1) A-II,B-IV,C-III,D-I
(2) A-IV,B-III,C-I,D-II
(3) A-IV,B-I,C-II,D-III
(4) A-IV,B-II,C-I,D-III

Match the List-I with List-II

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Match List-I with List-II.

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The difference of temperature in a material can convert heat energy into electrical energy. To harvest the heat energy, the material should have

Match List-I with List-II.

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Match the LIST-I with LIST-II

Match the LIST-I with LIST-II

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Match List I with List II

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Match List I with List II

Match List I with List II :

Match List I with List II

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Match List -I with List -II

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A thermocouple is made from two metals, Antimony and Bismuth. If one junction of the couple is kept hot and the other is kept cold then, an electric current will

Two voltameters one of copper and another of silver, are joined in parallel. When a total charge q flows through the voltameters, equal amount of metals are deposited. If the electrochemical equivalents of copper and silver are ${\mathrm{z}}_1$ and ${\mathrm{z}}_2$ respectively t …

The thermo emf of a thermocouple varies with the temperature $\theta$ of the hot junction as $E=a\theta +b{\theta }^2$ in volts where the ratio $a/b$ is $700^{\circ }C$. If the cold junction is kept at $0^{\circ }C$, then the neutral temperature is

The electrochemical equivalent of a metal is $3.3\times 10^{-7}$ kg per coulomb. The mass of the metal liberated at the cathode when a 3 A current is passed for 2 seconds will be