Question

What is the symbol of overvoltage?

(a) Alpha (α)

(b) Beta (β)

(c) Eta (η)

(d) Delta (Δ)

I have been asked this question in unit test.

This is a very interesting question from Modern Theory Principles topic in chapter Modern Theory Principles of Corrosion Engineering

Answer 1

Correct answer is (c) Eta (η)

The explanation is: The magnitude of polarization is measured in terms of over voltage and it is denoted with symbol Eta (η). It is the difference of corrosion potential (Ecorr) and the standard potential of an electrode.