The main function of the mouth piece of a telephone is th...
The main function of the mouth piece of a telephone is that it converts sound energy to
mechanical energy
electrical energy
chemical energy
thermal energy
Correct answer is B
No explanation has been provided for this answer.
Which of the following is NOT an effect that can be produced by an electric current? ...
A radioactive element has a decay constant of 0.077s-1. Calculate its half-life...
Which of the following statements about a neutral atom is correct? The ...