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Q1. | In sign magnitude numbers, |

A. | the leading bit stands for the sign [Correct Answer] |

B. | the leading bit is part of the magnitude [Wrong Answer] |

C. | the leading bit is always 0 [Wrong Answer] |

D. | the leading bit is always 1 [Wrong Answer] |

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

⇒ In Bode method of stability analysis, the error curve is not symmetric about corner frequency.

TRUE

FALSE

⇒ If V

_{dc1}is the dc output voltage in half wave controlled rectifier circuit feeding resistive load and V

_{dc2}is the dc output voltage in full wave controlled rectifier circuit (M - 2 connection) feeding resistive load, then

V

_{dc1}= 0.5 V

_{dc2}for all values of firing angle

V

_{dc1}= V

_{dc2}for all values of firing angle

V

_{dc1}≤ 0.5 V

_{dc2}for all values of firing angle

V

_{dc1}≥ 0.5 V

_{dc2}for all values of firing angle

⇒ A typical error rate on satellite circuits is one bit error in

10

^{7}

10

^{3}

10

^{2}

10

^{10}

⇒ Two resistances R

_{1}= 18.7 Ω. and R

_{2}= 3.624 Ω in series. The total resistance to the appropriate number of significant figures is

22.324 Ω

22.32 Ω

22.3 Ω

22 Ω

⇒ Each of two cascaded stages has a voltage gain of 30. The overall gain is

3

9

30

900

⇒ The first and second subscripts in models of circular waveguides depict

the number of full sine wave variations in circumference in direction and Bessel function variations in radial direction respectively

the Bessel function variations in radial direction and the number of full sine wave variations in circumference direction respectively

the Bessel function variations in circumference direction and number of full sine wave variations in radial direction respectively

none of the above

⇒ TTL inverter has

one input

two inputs

one or two inputs

three inputs

⇒ Binary number 11011.01 when converted to its 2's complement will become

101.11

1111.1

1100.1

100.11

⇒ As the magnitude of reverse bias is increased, the capacitance of varactor diode

increases

decreases

first increase, then decreases

first decreases then increases

⇒ A microstrip line has dielectric having relative permittivity ∈

*. The effective dielectric constant is*

_{r}more than ∈

_{r}equal to 1

less than ∈

_{r}either

*a*or

*b*

⇒ In figure the effective resistance faced by voltage source

1 Ω

2 Ω

3 Ω

3.3 Ω

⇒ A uniform plane EM wave incident normally on a plane surface of a dielectric material is reflected with a VSWR of 3. What percentage of incident power that is reflected?

0.1

0.25

0.5

0.75

⇒ Direct and reflected sound waves may interfere with each other.

TRUE

FALSE

⇒ In figure, the value of R shoul

12 Ω

6 Ω

3 Ω

1.5 Ω

⇒

**Assertion (A):** The gate current of an SCR is always in the form of pulses.

**Reason (R):** The gate losses, in pulse triggering, are low.

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

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

A is correct but R is wrong

A is wrong but R is correct

⇒ Consider the following time parameters

- Domain growth time constant.
- Transit time.
- Dielectric relaxation time in positive mobility regime.

1, 2, and 3

1 and 2 only

1 and 3 only

2 and 3 only

⇒ Which amplifier has the higher power gain?

Common emitter

Common collector

Common base

Both CC and CE

⇒ Calculate

*i*(

*t*) for

*t*≥ 0, assuming the switch has been in position A for a long time at

*t*= 0, the switch is moved to positio

1 +

*e*

^{-5 x 103t}

*e*

^{-5 x 103t}

1.11

*e*

^{-5 x 103t}

1.11 (1 -

*e*

^{-5 x 103t})

⇒ Current having waveform in figure flows through 10 Ω resistance. Average powe

1000 W

500 W

333.3 W

250 W

⇒ Kell factor is about

5

3

0.7

0.2

⇒ A single phase half wave controlled rectifier circuit has a free wheeling diode. The load is a combination of R and L. The firing angle is a. The period of conduction of SCR and free wheeling diode respectively are

a < ω

*t*< p and p < ω

*t*< (2p + a)

a < ω

*t*< p and p < ω

*t*< 2p

a < ω

*t*< (p + a) and (p + a) < ω

*t*< 2p

a < ω

*t*< p and p < ω

*t*< (2p - a)

⇒ In the given figure shows a logic circuit. The minimum Boolean expression for this circui

A + B

A + B + C

AB + C

AB + AC + BC

⇒ The magnitude plot of a composite signal

*x*(

*t*) =

*e*

^{2jt}+

*e*

^{3jt}is

Half wave rectified sinusoid

Full wave rectified sinusoid

Exponentially increasing sinusoid

Exponentially decreasing sinusoid

⇒ In the given figure shows a negative logic AND gate. If positive logic is used this gate is equivalen

AND gate

OR gate

NOR gate

NAND gate

⇒ 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

⇒ Colour picture tube needs higher anode voltage and needs larger beam and cathode currents than monochrome tube because

it is bigger in size

it has higher level of illumination

the tube has to illuminate three phosphors simultaneously

the tube has lower efficiency because of aperture mask

⇒ Consider the following statement in Fortran 77

4 values would be read and stored in X (0), X (1), X (2), X (3)

5 values would be read and stored in X (0), X (1), X (2), (3)(4)

5 values would be read and stored in X (I), X (2), X (3), X (4), X (5)

⇒ The V

_{TH}at terminals A and B is equal

0 V

5 V

- 5 V

None of these

⇒ In microwave communication links, when fading due to rain attenuation occurs then technique adopted for solving the problem would include

antenna replacement and feed correction

amplitude timing and phase correction

polarization shifting and code diversity

path diversity and frequency diversity

⇒ If 4 quadrant operation is required we need

dual converter

full converter

semi converter

none of the above