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Q1. | Out of the following memory types, one that is volatile is |

A. | ferrite-core [Wrong Answer] |

B. | semiconductor RAM [Correct Answer] |

C. | semiconductor ROM [Wrong Answer] |

D. | magnetic disc [Wrong Answer] |

View Answer
Explanation:-
Answer : BDiscuss 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 balun provides an impedance transformation of

0.667361111111111

0.334027777777778

0.167361111111111

0.0840277777777778

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

-200 dB/decade

-240 dB/decade

-280 dB/decade

-320 dB/decade

⇒ If input frequency is 50 Hz, the frequency of output wave in a full wave diode rectifier circuit is

25 Hz

50 Hz

100 Hz

200 Hz

⇒ Photoconductive devices uses

metallic conductors

good quality insulators

semiconductors

either (a) or (c)

⇒ In which frequency range is the noise figure in a transistor independent of frequency

intermediate frequencies

high frequency

low frequencies

both low and high frequencies

⇒ Consider the z-transform X(

*z*) = 5

*z*

^{2}+ 4

*z*

^{-1}+ 3; 0 < |

*z*| < ∞ The inverse transform

*x*[

*n*] is

5δ[

*n*+ 2] + 3δ[

*n*] + 4δ[

*n*- 1]

5δ[

*n*- 2] + 3δ[

*n*] + 4δ[

*n*+ 1]

5

*u*[

*n*+ 2] + 3

*u*[

*n*] + 4

*u*[

*n*- 1]

5

*u*[

*n*- 2] + 3

*u*[

*n*] + 4

*u*[

*n*+ 1]

⇒ In which one of the following types of analog to digital convertors the conversion time is practically independent of the amplitude of the analog signal?

The dual slope integrating type

Successive approximation type

Counter ramp type

Tracking type

⇒ Tuned voltage amplifiers are not used

in public address systems

in radio receivers

in television receivers for sound signals

in television receivers for video signals

⇒ The signal input to a given amplifier is made up of 100 mΩ signal power and 1 mΩ noise power. The amplifier contributes an additional 100 mΩ of noise and has a power gain of 20 dB. The output signal-to-noise ratio is

100

50

10

5

⇒ A NOR gate is a combination of

OR gate and AND gate

AND gate and NOT gate

OR gate and NOT gate

two NOT gates

⇒ In Z

_{RC}(

*s*) has a pole at

*s*= 0, the first element in first Foster realization is

a capacitor

a resistor

R-C in series

either a capacitor or resistor

⇒ The disturbance from adjacent power lines is known as

cross talk

cross fire

inductive disturbance

none of the above

⇒ An RC driving point impedance function has zeros at

*s*= - 2 and

*s*= - 5. The admissible poles are

*s*= 0 and

*s*= -6

*s*= -1 and

*s*= -3

*s*= 0 and

*s*= -1

*s*= -3 and

*s*= -4

⇒ In a two terminals network the O.C. voltage measured at the given terminals is 100 V and s.c., currents at the same terminals 5 A. If a load of 80 Ω resistance is connected at the terminals, load current is

0.0416666666666667

1.25 A

0.25

6.25 A

⇒ Boolean expression for the output of XNOR (Equivalent) logic gate with inputs A and B is

AB + AB

AB + AB

(A + B). (A + B)

(A + B). (A + B)

⇒ Which of these is also called 'hot carrier diode'?

PIN diode

LED

Photo diode

Schottky diode

⇒ The time base of a high frequency CRO whose screen diameter is 10 cm is set at 10 μ sec/cm. The lowest frequency which can be fully displayed on the screen is

more than 100 kHz

equal to 100 kHz

equal to 10 kHz

less than 10 kHz

⇒ Which language has a preprocessor?

Fortran 77

Pascal

C

None of the above

⇒ Given figure is the voltage transfer characteristi

an N MOS inverter with enhanced mode transistor as load

an N MOS inverter with depletion mode transistor as load

a CMOS inverter

BJT inverter

⇒ Due to the formation of Schottky defects the density of the crystal

increases slightly

increases appreciably

decreases slightly

decreases appreciably

⇒ The antenna current of an AM broad cast transmitter, modulated to a depth of 40% by an audio sine wave is 11 amperes. It increased to 12 ampere as a result of simultaneous modulation by another sine wave. The modulation index due to this second sine wave is :

0.4

0.757

0.643

0.8

⇒ A clock signal coordinates the working of different flip flops.

TRUE

FALSE

⇒ Two identical NMOS transistors M

_{1}and M

_{2}are connected as shown below. V

_{bias}is chosen so that both transistors are in saturation. The equivalent

*g*of the pair is defined t

_{m}the sum of individual

*g*'s of the transistors

_{m}the product of individual

*g*'s of the transistors

_{m}nearly equal to the

*g*of M

_{m}_{1}

nearly equal to

*g*/

_{m}*g*

_{0}of M

_{2}

⇒ In the circuit of fi

V

_{a}would always lag V

_{b}

V

_{a}would always lead V

_{b}

V

_{a}and V

_{b}can be in phase

phase angle between V

_{a}and V

_{b}would always be 90°

⇒ A heater is rated at 230 V, 5 A AC. Then

both the current and voltage are peak values

both the current and voltage are rms values

the current is peak value and voltage is rms value

the current is rms value and voltage is peak value

⇒ Bipolar IC memories are fabricated using

high density versions of the bipolar transistor flip-flop

low density versions of the unipolar transistor flip-flop

high density versions of the MOSFET

low density versions of the MOSFET

⇒ 2's complement representation of a 16 bit number (one sign bit and 15 magnitude bit) is FFFF. Its magnitude in decimal representation is

0

1

32676

65, 535

⇒ In the circuit, S was initially open. At time

*t*= 0, S is closed. When the current through the inductor is 6 A, the rate of change of current through the resistor is 6 A/s. The value of the inductor woul

1 H

2 H

3 H

4 H

⇒ For a reflection co-efficient of 0.5, the value of SWR is

-1

1

2

3

⇒ Which circuit has its output signal from, the emitter?

Common base

Common emitter

Emitter follower

None of the above