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Q1. | Simplify : A + B + A B + (A + B)AB + C(B + AB) |

A. | B + A [Correct Answer] |

B. | C [Wrong Answer] |

C. | C [Wrong Answer] |

D. | 1 [Wrong Answer] |

View Answer
Explanation:-
Answer : ADiscuss 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 :**

⇒ In the given figure shows a 3 bit shift register using TTL flip flops. Initially all the flip flops are set to 0 state. After 8 clock pul

A = 1, B = 1, C = 1

A = 1, B = 1, C = 0

A = 0, B = 1, C = 1

A = 0, B = 0, C = 1

⇒ Hystresis loss least depends on

frequency

magnetic field intensity

volume of the material

grain orientation of material

⇒ For a two port network to be reciprocal

Z

_{11}= Z

_{22}

*y*

_{12}=

*y*

_{21}

*h*

_{21}= -

*h*

_{12}

AD - BC = 0

⇒ The Hilbert transform of cos ω

_{1}

*t*+ sin ω

_{2}

*t*is

sin ω

_{1}

*t*+ cos ω

_{2}

*t*

sin ω

_{1}

*t*- cos ω

_{2}

*t*

cos ω

_{1}

*t*- cos ω

_{2}

*t*

sin ω

_{1}

*t*+ sin ω

_{2}

*t*

⇒ Which of the following is true as regards photo emission?

Velocity of emitted electrons is dependent on light intensity

Rate of photo emission is inversely proportional to light intensity

Maximum velocity of electron increases with decreasing wave length

Both holes and electrons are produced

⇒ In solid insulator materials having only one kind of atom, the types of polarization which exist are

electronic only

electronic and ionic

electronic, ionic and permanent

electronic and permanent

⇒ In practical commercial FM system, channel bandwidth is

150 kHz

100 kHz

88 MHz

108 MHz

⇒ A system has 12 poles and 2 zeros. Its high frequency asymptote in its magnitude plot has a slope of

-200 dB/decade

-240 dB/decade

-280 dB/decade

-320 dB/decade

⇒ A broadcast radio transmitter radiates 5 kW when the modulation percentage is 60. How much of this is carrier power?

6.66 kW

5 kW

4.9 kW

4.23 kW

⇒ The language PL / I has

one character set having 60 characters

one character set having 48 characters

one character set having 60 characters and another character set having 48 character

none of the above

⇒ The multiplication of two

*n*bit numbers gives a product of length less than or equal to

*n*bits

2

^{n}bits

2

*n*bits

2

^{n}- 1 bits

⇒ For measuring mutual inductance we can use

Anderson bridge

Maxwell's bridge

Heaviside bridge

Either (a) or (b)

⇒ Find L

_{eq}if each L is

4/3 H

1/3 H

2/3 H

3/2 D

⇒ The circuit of the figure is an example of feedback of the following

current series

current shunt

voltage series

voltage shunt

⇒ If the poles lie in second quadrant, damping ratio is

1

less than 1

zero

more than 1

⇒ The Table given below is the mark obtained by 2 students in 8 different subjec

*y*+ 0.57

*x*= 9.7558

*y*- 0.57

*x*= 9.758

033

*y*+

*x*= 6.335

0.33y -

*x*= 6.335

⇒ A static excitation system uses

transformer and thyristors

transformer and ac exciter

dc exciter and ac exciter

transformer and dc exciter

⇒ A sine wave of voltage varies from zero to maximum of 200V. How much is the voltage at the instant of 30° of the cycle?

50 V

82.8 V

100 V

173.2 V

⇒ If air pressure in a rectangular waveguide is increased the maximum power handling capacity

is decreased

is increased

remains the same

may increase or decrease depending on pressure

⇒ An ideal rectifier should have

100% efficiency, zero ripple factor, zero harmonic factor and unity displacement factor

100% efficiency, zero tipple factor, zero harmonic factor and zero displacement factor

100% efficiency, zero ripple factor, unity harmonic factor and unity displacement factor

100% efficiency, unity ripple factor, zero harmonic factor and unity displacement factor

⇒ If the mantissa has a sign bit of 0 and the exponent is changed from a negative number to a more positive number the result is

a positive number and closer to zero

a positive number and away from zero

a negative number

a negative number and closer to zero

⇒

Match the following:

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

A. | Darlington amplifier | 1. | A circuit using pnp and npn transistors |

B. | CB amplifier | 2. | A CS amplifier driving a CG amplifier |

C. | Cascade amplifier | 3. | A circuit with over-all voltage gain close to 1 and very large input impedance |

D. | Complementary symmetry amplifier | 4. | A circuit with low input impedance |

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

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

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

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

⇒ The percentage saving in power when the carrier and one of the sidebands are suppressed in an AM wave modulated to a depth of 100% will be nearly

0.5

0.66

0.75

0.83

⇒ Over which frequency range the effect of atmospheric noise is significant?

Over 35 MHz

Below 30 MHz

Between 30 MHz and 100 MHz

Between 100 MHz and 150 MHz

⇒ High speed counter

ring counter

ripple counter

synchronous counter

asynchronous counter

⇒ In microwave communication, some times, microwave signals reach large distances by following the earth curvature. This phenomenon is called

tropospheric scatter

faraday effect

ionospheric reflection

ducting

⇒

**Assertion (A):** When cathode temperature is increased from 2500 K to 2550 K, thermionic emission current may increase by about 50%.

**Reason (R):** Thermionic emission current ∝ T^{2} *e*^{-Ew/kT}.

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

⇒ The circuit shown in figure will ac

differentiator

adder

clipper

clamper

⇒ In figure, the power associated with 3 A sourc

36 W

24 W

16 W

8 W

⇒ An op-amp uses

RC coupling

direct coupling

transformer coupling

either (b) or (c)