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Q1. | An engineer designs an amplifier to have a voltage gain of 60, but when constructed it only had a gain of 50. How much feedback should be used to provide the desired level? |

A. | 0.0003 [Wrong Answer] |

B. | 0.0033 [Correct Answer] |

C. | 0.013 [Wrong Answer] |

D. | 0.033 [Wrong Answer] |

View Answer
Explanation:-
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**Also Read Similar Questions Below :**

⇒ Which of the following Boolean algebra rules is correct?

A . A = 1

A + AB = A + B

A + A B = A + B

A(A + B) = B

⇒ Reciprocity theorem is applicable to

circuits with one source

circuits with only one independent source

circuits with any number of sources

circuits with any number of independent sources

⇒ In the given circuit, viewed from AB, the circuit can be reduced to an equivalent circui

5 volts source in series with 10 Ω resistor

7 volts source in series with 2.4 Ω resistor

15 volts source in series with 2.4 Ω resistor

1 volt source in series with 10 Ω resistor

⇒ Consider the following statements associated with two port networks.

- Z
_{12}= Z_{21} - Y
_{12}= Y_{21} *h*_{12}=*h*_{21}- AD - BC = 1

1, 2, 3

2, 3, 4

1, 3, 4

1, 2, 4

⇒ A forward voltage of 9 V is applied to a diode in series with a 1 kΩ load resistor. The voltage across load resistor is zero. It indicates that

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diode is open circuited

resistor is open circuited

diode is either short circuited or open circuited

⇒ A duplexer is a device used to

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none of these

⇒ When a constant voltage source and constant current source are in series, the current source is ineffective.

TRUE

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must be low compared to the resistance of the source

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*y*(

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*y*(

*t*) = 0.5

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_{d}*x*(

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*t*

*) + 0.5*

_{d}*x*(

*t*-

*t*

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_{d}*H*(ω) of such a system is given by

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*e*

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*e*

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*e*

^{jωt}

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⇒ Which connection is rarely used?

CE

CB

CC

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⇒ If E is electric field intensity, the current density due to field emission is proportional to

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⇒ Consider the following statements, SWR of a transmission line is infinite when the load is

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1 and 3 only

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1, 2, 4

⇒

**Assertion (A):** Stubs, directional couplers and baluns are very commonly used in communication systems

**Reason (R):** Characteristic impedance of a line is an important parameter.

Both A and R are correct and R is correct explanation of A

Both A and R are correct but R is not correct explanation of A

A is correct but R is wrong

A is wrong but R is correct

⇒ A capacitor having capacitance C is raised to voltage V. The energy stored will be

CV

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V

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⇒ A mod-10 counter can divide the clock frequency by a factor of

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⇒ The communication satellite INSAT-IB had to take up the job of INSAT-IA because the latter collapsed within __________ months of its launch.

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⇒ The M circle for M = 1 is the

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⇒ Which inverter circuit uses coupled inductors?

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⇒ In a 3 phase full converter, the firing angle is less than 60°. The instantaneous output voltage

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⇒ For the logic circuit of the given figure the simplified Boolean expression

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⇒

Match the following:

List I (Theorems) | List II (Property of Network) | ||
---|---|---|---|

A. | Reciprocity | 1. | Impedance matching |

B. | Tellegen's | 2. | Bilateral |

C. | Superposition | 3. | ∑ V_{jk} I_{jk} = 0 |

D. | Maximum power transfer | 4. | Linear |

5. | Non linear |

A-1, B-2, C-3, D-4

A-1, B-2, C-3, D-5

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⇒ SCR can be turned on by

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1, 2, 4 only

4 only

1, 2, 3, 4

none

⇒ In the NMOS inverter

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both driver and load are depletion type

the driver and load are depletion type