Question

what best describes electromagnetic induction? select one: a. electricity that is created inside of special cells using sunlight b. electricity that is created when a crystal is distorted or under mechanical stress c. electricity that is formed by two dissimilar metals submerged in electrolyte d. electricity that is created when a wire passes through a magnetic field

Explanation:

• Option a describes photovoltaic cells (using sunlight to create electricity), not electromagnetic induction.
• Option b refers to piezoelectricity (electricity from mechanical stress on crystals), not electromagnetic induction.
• Option c describes a galvanic cell (using dissimilar metals in electrolyte), not electromagnetic induction.
• Option d matches the definition of electromagnetic induction, where a changing magnetic field (or a wire moving through a magnetic field) induces an electric current.

Answer:

d. Electricity that is created when a wire passes through a magnetic field