Question:
A variable, opposite external potential $\left(\mathrm{E}_{\text {ext }}\right)$ is applied to the cell $\mathrm{Zn}\left|\mathrm{Zn}^{2+}(1 \mathrm{M}) \| \mathrm{Cu}^{2+}(1 \mathrm{M})\right| \mathrm{Cu}$, of potential $1.1 \mathrm{~V} .$ When $\mathrm{E}_{\mathrm{ext}}<1.1 \mathrm{~V}$ and $\mathrm{E}_{\mathrm{ext}}>1.1 \mathrm{~V}$ respectively electrons flow from :
Correct Option: , 2
Solution:
Fact