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Shaju Upendran
Shaju Upendran
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Shaju Upendran

Studied Instrumentation and control at N S S College of engineering, Palakkad
Embedded Faculty at IME POOJAPURA
Live in Thiruvananthapuram,India, Kerala
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I am Instrumentation and Control graduate from Palakkad engineering college, Ker...
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30 Jun 2020 12:27 PM study24x7 study24x7

Hartley oscillator is commonly used in

A

radio receivers

B

radio transmitters

C

TV receivers

D

none of the above

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  • Edubabble LLP
  • Hartley oscillator is commonly used in Radio Receivers. The Hartley circuit is often referred to as a split-inductance oscillator because coil L is centre-tapped.
    30 Jun 2020 12:23 PM study24x7 study24x7

    An LC Oscillator cannot be used to produce low frequencies

    A

    true

    B

    false

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    30 Jun 2020 12:21 PM study24x7 study24x7

    An oscillator employs

    A

    positive feedback

    B

    negative feedback

    C

    neither positive nor negative feedback

    D

    data insufficient

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    30 Jun 2020 12:18 PM study24x7 study24x7

    An oscillator converts

    A

    a.c. power into d.c. power

    B

    d.c. power into a.c.power

    C

    mechanical power to a.c. power

    D

    none of the above

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    30 Jun 2020 12:12 PM study24x7 study24x7

    when negative voltage feedback is applied to an amplifier, its bandwidth

    A

    is increased

    B

    is decreased

    C

    remains the same

    D

    insufficient data

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    30 Jun 2020 12:07 PM study24x7 study24x7

    When current feedback (negative) is applied to an amplifier, its output impedance

    A

    is increased

    B

    is decreased

    C

    remains the same

    D

    none of the above

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    30 Jun 2020 12:05 PM study24x7 study24x7

    The voltage gain of emitter follower is

    A

    much less than 1

    B

    approximately equal to 1

    C

    greater than 1

    D

    none of the above

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    30 Jun 2020 12:03 PM study24x7 study24x7

    Emitter follower is used for

    A

    current gain

    B

    impedance matching

    C

    voltage gain

    D

    none of the above

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    30 Jun 2020 12:01 PM study24x7 study24x7

    When current feedback (negative) is applied to an amplifier , its input impedance

    A

    is decreased

    B

    is increased

    C

    remains the same

    D

    none of the above

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    28 Jun 2020 04:59 PM study24x7 study24x7

    Negative feedback is employed in

    A

    oscillators

    B

    rectifiers

    C

    amplifiers

    D

    none of the above

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