Q1. | The linear transistor circuits always operate in the |

A. | saturation [Wrong Answer] |

B. | cut off [Wrong Answer] |

C. | active [Correct Answer] |

D. | inactive [Wrong Answer] |

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

⇒ A first order system will never be able to give a __________ response

- band stop
- band pass
- all pass

1, 2, 3 true

1 and 3 true, 2 false

1, 2 are true 3 is false

1, 2 are false, 3 is true

⇒ The attenuation in waveguides near the cut off frequency is

very low

very high

medium

zero

⇒ When a unit step voltage drives a lag network the output

remains constant at unit step value

increases exponentially from zero to final value

decreases exponentially from 1 to 0

either (b) of (c) depending on values of R and C

⇒ For a delayed half wave rectified wave, the average and rms values are lower than those for half wave.

TRUE

FALSE

⇒ A leakage capacitor can be represented by a capacitance C and resistance R in parallel C.

TRUE

FALSE

⇒ If the potential functions V

_{1}and V

_{2}satisfy Laplace's equation within a closed region and assume the same values on its surface, then which of the following is correct?

V

_{1}and V

_{2}are identical

V

_{1}is inversely proportional to V

_{2}

V

_{1}has the same direction as V

_{2}

V

_{1}has the same magnitude as V

_{2}but has different direction

⇒ Which of the following functions would have only odd powers of

*x*in its Taylor series expansion about the point

*x*= 0?

sin (

*x*

^{3})

sin (

*x*

^{2})

cos (

*x*

^{3})

cos (

*x*

^{2})

⇒ When a current flows through a conductor,

an electric field exists at all points within the conductor

electric field exists only at all points on the surface of the conductor

electric field exists only at ends of the conductor

any of the above depending on magnitude of current

⇒ The resolution of a 4 bit counting ADC is 0.5 volts. For an analog input of 6.6 volts, the digital output of the ADC will be

1011

1101

1100

1110

⇒ V

_{R}at

*t*< T,

*t*= &in

500

*e*

^{-40x104t}, 0

100

*e*

^{-40x103t}, 0

100

*e*

^{-40x106t}, 0

100

*e*

^{-40x104t}, 0

⇒ For most metals, Fermi level E

_{F}is less than

0.1 eV

2 eV

5 eV

10 eV

⇒ To prevent a DC return between source and load, it is necessary to use

resistor between source and load

inductor between source and load

capacitor between source and load

either (a) or (b)

⇒ In Fortran 77 negation is a unary operation.

TRUE

FALSE

⇒ The slew rate of an ideal op-amp is

very slow

slow

fast

infinitely fast

⇒ For the discrete time system of the given fig

*y*= 0.5

_{k}*u*-

_{k - 2}*u*- 0.25

_{k}*y*- 1

_{k}*y*= 0.5

_{k}*u*

_{k}_{ - 1}-

*u*- 0.25

_{k}*y*- 1

_{k}*y*= 0.5

_{k}*u*

_{k}- u_{k}_{ - 1}- 0.25

*y*- 1

_{k}*y*= 0.5

_{k}*u*

_{k}_{ - 1}-

*u*

_{k}_{ - 1}- 0.25

*y*- 1

_{k}⇒ Which converters uses integrating op-amp?

Parallel A/D converter

Single slope A/D converter

Dual slope A/D converter

Both (b) and (c)

⇒ A parametric amplifier uses

non linear resistance

non linear reactance

either (a) or (b)

neither (a) nor (b)

⇒ The Sun blots out the transmission of a geosynchronous satellite twice a year when satellite passes directly in front of it. This outage lasts for about

10 minutes on 5 consecutive days

5 minutes on 10 consecutive days

30 minutes for 5 consecutive days

one hour for 5 consecutive days

⇒ Industrial heating furnaces such as arc and induction furnaces operate on __________ power factor

low leading

low lagging

high leading

very low lagging

⇒ Decimal 43 in hexadecimal and BCD number system is respectively.

B2, 01000011

2B, 01000011

2B, 00110100

B2, 01000100

⇒ In 8086

the registers SI and DI are used for string operation

the registers CS and DS are used for string operation

the registers SS and ES are used for string operation

the registers SI and SP are used for string operation

⇒

**Assertion (A):** R-2R ladder type DAC has higher speed of operation than weighted resistor DAC

**Reason (R):** R-2R ladder type DAC uses only two different values of resistor network uses many different values of resistors

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 true, R is false

A is false, R is true

⇒ 9's complement of 12

_{10}is

21

_{10}

87

_{10}

78

_{10}

76

_{10}

⇒

**Assertion (A):** If a wave *v* = A_{1} + A_{2} sin ω*t* is applied to a pure capacitor the current wav

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 true, R is false

A is false, R is true

⇒ N-channel FETs are superior to *p*-channel FETs because

mobility of electrons is smaller than that of holes

mobility of electrons is greater than that of holes

they consume less power

they have high switching time

⇒ A 300 V voltmeter has an accuracy of ± 2% of full scale deflection. When the reading is 222 V, the actual voltage

lies between 217.56 and 226.44 V

lies between 217.4 and 226.6 V

lies between 216 and 228 V

is exact 222 V

⇒ RF amplifiers are used in radio receivers for

better sensitivity

improved signal-to-noise ratio

better coupling of receiver to the antenna

all of the above

⇒ Noise with uniform power spectral density of N_{0}ω/H_{z} is passed through a filter H(ω) = 2 exp (-J ω *t _{y}*) followed by an ideal low pass filter of bandwidth B Hz. The output noise power in watts is

2 N

_{0}B

4 N

_{0}B

8 N

_{0}B

16 N

_{0}B

⇒

List I | List II | ||
---|---|---|---|

A. | Serial Binary adder | 1. | (2n - 1)t_{pd} |

B. | Ripple carry adder | 2. | (n - 1)t_{pd} |

C. | Carry look ahead binary adder | 3. | Operation time independent of size |

4. | 6t for 4 bit carry look ahead adder_{pd} |

A-2, B-1, C-3

A-2, B-1, C-4

A-1, B-2, C-4

A-1, B-2, C-3

⇒ The colour code on a carbon resistor is yellow-violet-orange. The value of resistance is

17000 Ω

27000 Ω

37000 Ω

47000 Ω