Answer
The renowned fairy tale writer who enjoyed a friendship with Ørsted was Hans Christian Andersen. Ørsted, a renowned physicist and chemist, formed a close bond with Andersen, whose literary genius crafted cherished fairy tales like "The Little Mermaid" and "The Ugly Duckling." Their friendship blossomed during a time of great intellectual and cultural ferment, enhancing their lives and leaving an indelible mark on the worlds of science and literature.