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Q1. | If the sign bit of mantissa is 0 and the exponent is increased from a positive to a more negative number the result is |

A. | a larger floating point number [Correct Answer] |

B. | a smaller floating point number [Wrong Answer] |

C. | either (a) or (b) depending on the actual number [Wrong Answer] |

D. | a negative floating point number [Wrong Answer] |

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

⇒ The rotation of direction of E field of a linearly polarized wave passing through a magnetised ferric medium is called

Lorentz rotation

Faraday rotation

Steinmitz rotation

Fleming's rotation

⇒ The voltage

*e*

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24 V

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⇒ Figure sho

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none of the above

⇒ The collector voltage V

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4.6 V

8 V

8.6 V

⇒ If the oscillator output is modulated by audio frequencies upto 10 kHz, the frequency range occupied by the side bands will be

711.9 kHz to 712.1 kHz

702 kHz to 722 kHz

692 kHz to 732 kHz

71.2 kHz to 71.20 kHz

⇒

Match the following:

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

A. | Total instantaneous value of emitter current | 1. | I_{E} |

B. | Quiescent value of emitter current | 2. | i_{E} |

C. | Instantaneous value of as component of emitter current | 3. | I_{e} |

D. | RMS value of ac component of emitter current | 4. | i_{e} |

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

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

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

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

⇒ In a digital system there are three inputs ABC. Output should be high when atleast two inputs are high. Then output =

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ABC + ABC + A BC + ABC

AB + BC + AC

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⇒ In the analysis of common emitter amplifier we may neglect

*h*

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**Assertion (A):** If Z_{1}(*s*) and Z_{2}(*s*) are positive real then Z_{1}(*s*) + Z_{2}(*s*) as well as 1/Z_{1}(*s*) and 1/Z_{2}(*s*) are positive real.

**Reason (R):** The poles of a positive real function are real or occur in conjugate pairs.

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

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

A is true but R is false

A is false but R is true

⇒ In a ferromagnetic material, the internal field seen by a dipole is

equal to applied field

equal to applied field minus a contribution from neighbouring dipoles

equal to applied field plus a contribution from neighbouring dipoles

equal to or less than applied field

⇒ The Nyquist plot of a stable, transfer function

*G*(

*s*) is shown in the figure. We are interested in the stability of the closed loop system in the feedback configuration sh

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G(

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G(

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G(

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⇒ The '

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2

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⇒ With regard to a transmission line, which of the following statements is correct?

Any impedance repeats itself every 1/4 on the Smith chart.

The S.W.R. = 2 circle and the magnitude of reflection coefficient = 0.5 circle coincide on the Smith chart.

At any point on a transmission line, the current reflection coefficient is the reciprocal of the voltage reflection coefficient.

Matching eliminates the reflected wave between the source and the matching device location.

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

TRUE

FALSE

⇒ Two independence parameters Z

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Z

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Z

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Z

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Z

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⇒ A voltage v = 5 + 50 sin ω

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*t*

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*t*+ 0.00785 cos 1570 t

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⇒ A FET is a __________ controlled device whereas a bipolar transistor is a __________ controlled device.

gate, drain

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voltage, current

⇒ Lowest resistivity of the following is

constantan

german silver

manganin

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⇒ Consider the program segment written for 8085 based sys

41

69

44

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100

*v*

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past inputs only

past outputs only

past output and present input

⇒

**Assertion (A):** The access time of memory is lowest in the case of DRAM

**Reason (R):** DRAM uses refreshing cycle.

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

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lag network

lead network

lag-lead network

any of the above

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⇒ The numerical value of directivity of current element of half-wave dipole is 1.76 and 2.15 dB respectively. The directive gain of half-wave dipole over current element will be

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⇒ Electrical contact materials used in switches, brushes and relays must possess

high thermal conductivity and high melting point

low thermal conductivity and low melting point

high thermal conductivity and low melting point

low thermal conductivity and high melting point