Free help with homework

Why join Brainly?

  • ask questions about your assignment
  • get answers with explanations
  • find similar questions



This Is a Certified Answer

Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
Electric Bell converts electrical energy into mechanical (vibrational) energy and then that into sound energy.

Loud speaker converts electrical energy into mechanical vibrational energy and then into sound energy.

Radio converts electromagnetic energy (in waves from atmosphere) into electrical energy in the circuit, which is converted in to mechanical vibrations (of diaphragm)  and then into sound energy.

Micro phone converts sound energy into vibrations of diaphragm (mechanical energy) and then that into electromagnetic energy (induced emf and current). 

Microphone does opposite function to that of the other three devices.
1 5 1
Micro phone is the odd one of the following
0 0 0
The Brain
  • The Brain
  • Helper
Not sure about the answer?
Learn more with Brainly!
Having trouble with your homework?
Get free help!
  • 80% of questions are answered in under 10 minutes
  • Answers come with explanations, so that you can learn
  • Answer quality is ensured by our experts