A) A for water voltameter and B for \[Cu\] voltameter
B) A for \[Cu\] voltameter and B for water voltameter
C) Both A and B represents \[Cu\] voltameter
D) None of these
Correct Answer: A
Solution :
Cu voltameter with soluble electrodes obeys ohms law. In water voltameter, in the beginning when V is small \[(<\,1.7\,volt),\] very little current flows, the voltameter does not obey ohms law. As soon as V exceeds 1.7 volt (back e.m.f.) the current increases steadily according to ohms law.
You need to login to perform this action.
You will be redirected in
3 sec
