The carbon-granules microphone works on the principle of ...
The carbon-granules microphone works on the principle of change in
inductance
resistance
capacitance
voltage
Correct answer is B
No explanation has been provided for this answer.
Which of the following statements about a neutral atom is correct? The ...
Lenz's law is a law of conservation of ...
Which of the following statements about solid friction are correct? It i. is a force ii. occurs ...
The current in a series R-L-C circuit attains its maximum value when the ...
Which of the following statements about the human eye and the camera is correct? ...
Calculate the resistance of the filament of a lamp rates 240 V, 40 W ...