Assuming a person is taught physics. I don't see why even an upper level business major would have to know Ohm's law. It's impossible to have any idea of a person's education through a single question alone unless their education is so poor that they are bound to get a simple question wrong.
And that is the problem.
That equation is NOT a law, despite lower level physics misnaming it as such.
It is a definition , in this case of resistance, it is NOT ohms law despite being mislabelled as such so often it has gained the status of fact. Indeed to a purist it is not even an equation. It is an identity if rewritten correctly as -
R identically equal to V/I
Ohms law states that measured resistance is reasonably constant for a range of materials ( certainly not all) over a range of operating points. I.e. An experimental law.
That illustrates the difference between the axiomatic scientific model and the limited conformance with the universe, observed in laws so the model does not underpin the universe it simply models observation of it,
And it is incumbent on all in high level education at least to understand what science is and what it is not, or indeed to understand the meaning of words like hypothesis , theory and law, definition and axiomatic model.
In almost all disciplines scientific process and modelling is used, and it is vital to understand the limits of it. What it can tell you, what it cannot.
So understanding the difference between definitions and experimental laws, axiomatic and fundamental models, is vital to any would be researcher, business included - Particularly those who wish to model using statistical correlations, to understand that correlation is not cause.
So for example observation of salary difference or numbers in salary bands between male and female is not demonstration of causal discrimination.
As a now ex employer of many high calibre masters, doctorate and post doctoral staff, I used a set of questions to discover those who had IQ and understanding needed for such calling, many did not. The failures were rote learners - that is - they were a database without a big enough CPU!