ExamPlay Dark Logo
تسجيل الدخول

Physics for IGCSE & O level - Magnets And Currents (Section 5 - No. 5)

What is the role of an amplifier in a loudspeaker system?
To convert sound waves to electrical signals.
To increase the power of the electrical signal.
To create a magnetic field.
To act as a magnet.

توضيح

An amplifier increases the power of the electrical signal sent to the loudspeaker.

تعليقات (0)

إعلان