What will happen to an electrical coil when the direct current flowing through the coil is increasing?

Correct Answer: Option A — the increasing current produces a voltage in opposition to the applied voltage

Faraday's Law and Lenz's Law dictate that increasing direct current through an inductive coil produces an expanding magnetic field. This induces a counter-electromotive force (CEMF) that opposes the primary applied voltage change during transient conditions.