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Which of the following is not transducer...

Which of the following is not transducer?

A

Loudspeaker

B

Amplifier

C

Microphone

D

all of the above

Text Solution

Verified by Experts

The correct Answer is:
B
A transducer is a device, usually electrical or electronic that converts non-electrical signal into electrical signal or vice-versa. Loudspeaker and microphone fall in this category, while amplifier is one which amplifies a signal, hence it is not a transducer.
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-ELECTROMAGNETIC INDUCTION-Example 1
  1. If the coils of a transfomer are made up of thick wire, then

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  2. If a transfomer of an audio amplifier has output impedance 8000Omega a...

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  3. Which of the following is not transducer?

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  4. For high frequency, a capacitor offers

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  5. By what percentage the impedance in an AC series circuit should be inc...

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  6. The maximum value of a.c. voltage in a circuit is 707 V . Its rms valu...

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  7. Which current do not change direction with time?

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  8. Which of the following represents the value of voltage and current at ...

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  9. A 60muF capacitor is connected to a 110V, 60 Hz AC supply determine th...

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  10. A group of electric lamps having total power rating of 600 W, 200 V is...

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  11. In an AC circuit the instantaneous values of emf and current are e=2...

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  12. The peak value of 220 a.c. is

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  13. Alternating current can not be measured by D.C. Ammeter because

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  14. An AC source is 120 V-60 Hz. The value of voltage after 1/720 s from...

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  15. The instantaneous voltage through a device of impendance 20 Omega is V...

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  16. For a given ac i=imsinomegat, show that the average power dissipated i...

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  17. If the frequency is doubled, what happens to the capacitive reactance ...

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  18. Voltage and current in an ac circuit are given by V=5 sin (100 pi t-...

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  19. To express AC power in the same from as DC power, a special value of c...

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  20. A light bulb is rated at 100 W for a 220 V ac supply . The resistance ...

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