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Q1. | Linear diode detector utilizes |

A. | linear portion of static characteristics of diode [Wrong Answer] |

B. | linear portion of dynamic characteristic of diode [Wrong Answer] |

C. | square law portion of dynamic characteristics of diode [Wrong Answer] |

D. | rectification property of diode [Correct Answer] |

View Answer
Explanation:-
Answer : DDiscuss it below :!! OOPS Login [Click here] is required to post your answer/resultHelp other students, write article, leave your comments |

**Also Read Similar Questions Below :**

⇒ A lead compensator

speeds up the transient response

increases the stability margin

increases the stability margin and speeds up the transient-response.

none of the above.

⇒ Choose the correct match for input resistance of various amplifier configurations shown below configurat

CB-LO, CC-MO, CE-HI

CB-LO, CC-HI, CE-MO

CB-MO, CC-HI, CE-LO

CB-HI, CC-LO, CE-MO

⇒ Figure shows characteristics curves for bipolar transistor. These curves

output characteristics of

*n*-

*p*-

*n*transistor (common base)

output characteristics of

*p*-

*n*-

*p*transistor (common base)

output characteristics of

*n*-

*p*-

*n*transistor (common emitter)

output characteristics of

*p*-

*n*-

*p*transistor (common emitter)

⇒ A current wave is

*i*= 100

*e*

^{-60t}The initial and final values of current are

100 and 50

100 and 0

0 and 100

100 and 100

⇒ A 200 turn coil has a self inductance of 10 mH. If the number of turns is doubled, all other quantities remaining the same, the self inductance will be

2.5 mH

5 mH

20 mH

40 mH

⇒ Microwave link repeaters are typically 50 km apart in TV transmission due to

atmosphere attenuation

output power tube limitations

attenuation of surface wave

earth's curvature

⇒ A flip-flop circuit is

monostable

bistable

multistable

unstable

⇒ In figure, the reading of wattmeter will be proportio

V I cos θ

3 VI cos θ

3 VI sin θ

V I sin θ

⇒ A transmission line is feeding 1 watt of power to a horn antenna having a gain of 10 dB. The antenna is matched to the transmission line. The total power radiated by the horn antenna into the free space is

10 watts

1 watt

0.1 watt

0.01 watt

⇒ Consider the following digital circu

1 and 2

3 and 4

1, 2 and 3

1, 2, 3 and 4

⇒ In a 741 OP-amp, there is 20 dB/decade fall-off starting at a relatively low frequency. This is due to

applied load

internal compensation

impedance of the source

power dissipation in the chip

⇒ If two networks are connected in series of individual Z parameter as Z

_{a}and Z

_{b}then equivalent Z is

[Z] = [Z

_{a}] + [Z

_{b}]

[Z] = [Z

_{a}] [Z

_{b}]

[Z] = [Z

_{a}]/[Z

_{b}]

[Z] = [Z

_{a}] - [Z

_{b}]

⇒ The sum of 1110101

_{2}and 11011

_{2}in decimal form will be

65

75

85

95

⇒ In 8085, Whenever a signal is received at TRAP terminal its program execution is transferred to a subroutine on address __________ .

0000 H

0024 H

002 CH

provided by the address generation logic

⇒ The range of a cordless telephone is about

1000 m

500 m

100 m

10 m

⇒ Turn on time of a transistor switch is equal to sum of (where

*t*

_{r}is rise time,

*t*

_{d}is delay time)

*t*

_{s}-

*t*

_{r}

*t*

_{s}-

*t*

_{f}

*t*

_{d}+

*t*

_{r}

2

*t*

_{r}

⇒ Consider the following as regards cumulative disribution function F(

*x*)

- 0 ≤ F(
*x*) ≤ 1 - F(- ∞) = 0
- F(∞) = 1
- F(
*x*_{1}) ≤ F(*x*_{2}) If*x*_{1}<*x*_{2}

1 and 2 only

1, 2 and 3 only

1, 2, 3 and 4

2 and 4

⇒ The specified maximum junction temperature of thyristors is about

50°C

80°C

120°C

200°C

⇒ A series R-L circuit has R = 1 Ω and L = 1 H. It is excited by a V battery at

*t*= 0. The steady state condition is reached at

*t*= 1

*s*

*t*= 0.1

*s*

*t*= 0

*s*

*t*= ∞

⇒ A network has two sources of different frequencies. The only method of analysis which can be used to find current and voltages of different branches is the use of

Kirchoff's laws

Superposition theorem

Thevenin's theorem

Tellegen's theorem

⇒

**Assertion (A):** Resistivity of a perfect single crystal of a metal goes to zero as T approaches zero.

**Reason (R):** Scattering of electrons is due to deviations from perfect periodicity of lattice.

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

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

A is true but R is false

A is false but R is true

⇒ FIR digital filter having __________ stability than FIR filter.

good stability

poor stability

stability not guarnteed

poor stability

⇒ Two passive elements are connected in series and a dc voltage is applied to the circuit. The time variation of the current is shown in figure. The two elements

one resistance and the other inductance

both resistances

one inductance and the other capacitance

one resistance and the other capacitance

⇒ A permanent magnet moving coil meter can be used as

ac only

dc only

both ac and dc

low frequency ac and dc

⇒ The K-map for a Boolean function is shown in figure. The number of essential prime implicants for this functio

4

5

6

8

⇒ In a series RLC circuit the phase angle θ of impedance Z ∠θ is positive. The circuit will behave as

resistive circuit

RC circuit

RL circuit

either RL or RC circuit

⇒ A signal

*x*(

*t*) = 100 cos (24p x 10

^{3}

*t*) is ideally sampled with a sampling period of 50 μ sec and then passed through an ideal low pass filter with cut off frequency of 15 kHz Which of the following frequencies are present at the filter output?

12 kHz only

8 kHz only

12 kHz and 9 kHz

12 kHz and 8 kHz

⇒ In sign magnitude numbers,

the leading bit stands for the sign

the leading bit is part of the magnitude

the leading bit is always 0

the leading bit is always 1

⇒ A resistance of 5 ohms is connected in one branch of a network. The current in this branch is 2.2. A. If the resistance is increased to 7.5 Ω, the remaining circuit being the same, the current in this branch will be

2.2 A

less than 2.2 A

2.2 A or less than 2.2 A

2.2 A or less or more than 2.2 A

⇒ The maximum number of AM broadcast stations that can be accommodated in a 100 kHz bandwidth for the highest modulating frequency of 5 kHz will be

100

20

10

1