Sam E expressed precisely :
On 05/30/2016 06:13 AM, Al Gebra wrote:

[snip]

Voltage drop is represented by the formula E=I*R
Seems to me if the current flow is zero, then the voltage would be zero
as well.

IIRC, it's I squared R. Of course, it's still no voltage drop with no
current. Is it possible there's a confused poster here, who has R and thinks
it's E.

Power is E*I and since E=I*R power also equals I*I*R or I squared R.

You are correct that there is *no* 'voltage drop' with no current,
which is not the same as saying that the 'voltage drop' is zero.