What is a transducer?
- A$A$ device that converts electrical energy into mechanical energy.
- B$A$ device that converts one form of energy into another.
- C$A$ device that amplifies a signal.
- D$A$ device that transmits radio waves.
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Similar Questions
In an $AM$ wave,the total power is $900 \ W$. For $100\%$ modulation,the power transmitted in the sidebands is ... $W$.
Medium
View SolutionMatch List-$I$ with List-$II$:
List-$I$ List-$II$ $A$. Television signal $I$. $03\,KHz$ $B$. Radio signal $II$. $20\,KHz$ $C$. High Quality Music $III$. $02\,MHz$ $D$. Human speech $IV$. $06\,MHz$
Choose the correct answer from the options given below:
| List-$I$ | List-$II$ |
|---|---|
| $A$. Television signal | $I$. $03\,KHz$ |
| $B$. Radio signal | $II$. $20\,KHz$ |
| $C$. High Quality Music | $III$. $02\,MHz$ |
| $D$. Human speech | $IV$. $06\,MHz$ |
Choose the correct answer from the options given below:
In amplitude modulation,the amplitude of the carrier wave is $A_c$ and that of the modulating signal is $A_m$. In practice,the ratio of $A_m$ to $A_c$ is kept less than or equal to $1$ to avoid:
$A$ carrier wave of amplitude $15\,V$ is modulated by a sinusoidal baseband signal of amplitude $3\,V$. The ratio of maximum amplitude to minimum amplitude in an amplitude modulated wave is:
If a $TV$ transmission antenna covers a radius of $128 \, km$,what should be the height of the antenna in $m$?
Easy
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