Sign of the Faraday-Lenz equation

[Guillem_dlc]

Homework Statement

Hello, good afternoon,
I have a question that's coming up when I'm doing electromagnetic induction exercises. In some exercises they ask me to determine the electromotive force (iee), and when they do the exercise resolution they do it with absolute value. In other exercises, however, they put the negative sign of the Faraday-Lenz equation.
If someone would help me, I'd appreciate it.

Homework Equations

Faraday-Lenz equation

The Attempt at a Solution

The sign of the equation

 

[Wrichik Basu]

It actually depends on the numerical.

In general, some professors, like Ramamurti Shankar (see below) advises to use the absolute value, and finally mention the direction.

Otherwise it'll be difficult to comment without looking at the numerical.