{"page":"\n\n
\n
\n
\n
\n
\n\nVideo\n
\n

\nLoudspeakers and the Motor Effect: Converting Electric Currents into Sound Waves\n

\n
\n
\nGet Free Access for 10 Days!\n
\n
\n
\n
\n
\n
×
\n\n\n
\n\nPublisher:\n\nCurated Video\n\n\n
\n
\nThis is a lecture video explaining how loudspeakers work by utilizing the motor effect, which is when a current-carrying conductor experiences a force when placed in a magnetic field. The video demonstrates this effect on a conductor...\nThis is a lecture video explaining how loudspeakers work by utilizing the motor effect, which is when a current-carrying conductor experiences a force when placed in a magnetic field. The video demonstrates this effect on a conductor between two magnetic poles and explains how the direction of the force can be determined using Fleming's left-hand rule. The video then goes on to explain the components of a loudspeaker, including a conducting coil of wire and a permanent magnet, and how the motor effect is utilized to convert the electric current into sound waves. The video concludes by discussing the frequency of the sound waves produced by loudspeakers.\n
\n
\n\n
\n
\n
\n
\n

Resource Details

\n
\n
\n
\n
Curator Rating
\n
\n
\n
\n
\n
\n
Educator Rating
Not yet Rated
\n
\n
\n
\n
\n
Media Length
\n
3:08
\n
\n
\n
\n
\n
Grade
9th - Higher Ed
\n
\n
\n
\n
\n
Subjects
Science
6 more...
\n
\n
\n
\n
\n
Media Type
Instructional Videos
\n
\n
\n
\n
\n
Source:
\n
\nKnowMo Physics\n\n
\n
\n
\n
\n
\n
Date
\n
2018
\n
\n
\n
\n
\n\n
Language
English
\n
\n
\n
\n
\n
Audiences
For Teacher Use
2 more...
\n
\n
\n
\n
\n
Usage Permissions
Fine Print: Educational Use
\n
\n
\n
\n
\n
\n

Additional Materials

\n
\n\nSign in or Join Now
\" data-title=\"Get Full Access\" data-container=\"body\" rel=\"popover\" tabindex=\"0\" href=\"/subscription/new\">Video Transcript\n
\n
\n\nSign in or Join Now
\" data-title=\"Get Full Access\" data-container=\"body\" rel=\"popover\" tabindex=\"0\" href=\"/subscription/new\">Video Preview\n
\n
\n
\n

Concepts

\n
\n
magnetism, electromagnetism, sound waves, force, pressure
\n
\n\n\n
\n
\n
\n
\n

Additional Tags

\n
\n
gcse, and, igcse, science, physics, aqa, loudspeakers, lecture video, magnetic field, permanent magnet, north pole, south pole, hand side, left hand, conducting coil, motor effect, alternating current, force acts, wire coil, conducting wire, electric current, conducting, effect, current, electric, wire, loudspeaker, experience, point, conductor, direction, flowing, finger, note
\n
\n\n\n
\n
\n
\n
\n

Classroom Considerations

\n
Best For: Explaining a topic
Video is ad-free
\n
\n
\n

Educator Ratings

\n
\n
\n
\n
\n
\n\nShow resource details\n
\n
\n\" data-title=\"Get Full Access\" data-container=\"body\" rel=\"popover\" tabindex=\"0\" aria-label=\"Play video: Loudspeakers and the Motor Effect: Converting Electric Currents into Sound Waves\" href=\"/subscription/new\">\"Loudspeakers\n\n
\n
\n
\n\n\n\n"}