Page 284: Current flowing through a coil induces a magnetic field. What will cause the coil to spin?
Solución de tutoría real
Responder
Solución
¡Inicia sesión para desbloquear respuestas gratis!
Una plataforma de aprendizaje en la que confían millones de estudiantes y profesores reales.
Revisado y aprobado por el equipo de tutoría de UpStudy
The Deep Dive
When a current flows through a coil, it generates a magnetic field, but to make that coil spin, you need to introduce another magnetic field – usually from permanent magnets or another coil. By aligning these fields and then applying a mechanism to vary the current or the magnetic field, you create torque, causing the coil to rotate. This principle is fundamentally at work in electric motors! A fascinating real-world application of this principle is found in everyday devices like ceiling fans and electric drills. These appliances contain motors where copper coils spin rapidly due to alternating current, efficiently converting electrical energy into mechanical energy. Just think about it next time you enjoy a cool breeze or drill a hole!