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A. | 1, 2, 3 and 4 [Correct Answer] |
B. | 1, 2, 3 [Wrong Answer] |
C. | 1 and 3 [Wrong Answer] |
D. | 1 2 and 4 [Wrong Answer] |
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Explanation:-
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Also Read Similar Questions Below :
⇒ The emitter coupled pair of BJT's gives a linear transfer relation between the differential output voltage and the differential input voltage V_{id} only when the magnitude of V_{id} is less a times the thermal voltage, where a is
4
3
2
1
⇒ In n type MOSFET, the substrate
is p type
is n type
is metallic
may be p or n type
⇒ In the op-amp circuit of figure, V_{0Vi3 Vi5 Vi0.5 Vi}
⇒ The problem of logic race occurs in
SOP functions
POS functions
Hybrid function
SOP and POS functions
⇒ A class A chopper has an input voltage of 200 V. T_{on} = 1.5 ms and T_{off} = 4.5 ms. The duty cycle, average output voltage and ripple factor respectively are
0.5, 100 V and 1
0.25, 50 V and 3
0.25, 50 V and 1
0.5, 100 V and 3
⇒ Silicon and germanium have diamond structure. The number of atoms in a volume equal to a^{3} where a is the edge of elementary cube are
32
16
8
4
⇒ A circuit is replaced by its Thevenin's equivalent to find current through a certain branch. If V_{TH} = 10 V and R_{TH} = 20 Ω, the current through the branch
will always be 0.5 A
will always be less than 0.5 A
will always be equal to or less than 0.5 A
may be 0.5 A or more or less
⇒ The 6 V zener diode shown in figure has zero zener resistance and a knee current of 5 mA. The minimum value of R, so that the voltage across it does not fall below 6
1.2 kΩ
80 Ω
50 W
0
⇒ Windows can run several tasks simultaneously.
TRUE
FALSE
⇒ An electron for which l = 0 has zero orbital magnetic dipole moment.
TRUE
FALSE
⇒ If ωε is the displacement current factor and s is conduction current density factor then which of the following statements is incorrect?
For a lossless dielectric σ = 0
For an imperfect dielectric σ = 0
For a dielectric ωε >> σ
For a semiconductor ωε = σ
⇒ The sum of two sine waves of different frequencies is a sine wave.
TRUE
FALSE
⇒ In figure the phase
will be 90° at ω = 0 and 0° at ω = ∞
will be 0° at ω = 0 and 90° at ω = ∞
will be 45° at ω = 0 and 0° at ω = ∞
will be 45° at ω = 0 and 90° at ω = ∞
⇒ (62)_{10} in binary system is
110000
111100
111110
111111
⇒ The colour of an object is decided by
the reflected colour
the wavelength transmitted through it
reflected colour for opaque object and wavelength transmitted through it for transparent objects
none of the above
⇒ What is the result for expression (map metho
A + D + BC
A + D
A D + B C
A + D + BC
⇒ The radiation pattern of loop antenna is
circle
semicircle
elliptical
cardoid or Limacon
⇒ For the circuit in figure, fed by a unit step voltage, v_{c1 - e-t/RCe-t/RCet/RC1}
⇒ D/A converters are generally
weighted resistor network
binary ladder network
either (a) or (b)
neither (a) nor (b)
⇒ Phase velocity of waves propagating in a hollow metal waveguide is
greater than the group velocity
less than the velocity of light in free space
equal to the velocity of light in free space
equal to group velocity
⇒
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 R is false
A is false R is true
⇒ The forbidden energy gap for germanium is
0.12 eV
0.32 eV
0.72 eV
0.92 eV
⇒ Ohmic range of metal film resistors is
1 to 100 ohms
10 to 1 K ohms
100 to 1 M ohms
100 to 100 M ohms
⇒ A line is excited by a 100 V, 200 ohm source and is terminated by 100 Ω resistance. If the voltage on line reaches steady value in 80 ns, the natural resonant frequency is
100 MHz
50 MHz
12.5 MHz
6.25 MHz
⇒
A-3, B-2, C-1, D-4
A-2, B-3, C-1, D-4
A-1, B-2, C-3, D-4
A-4, B-2, C-1, D-3
⇒ If Nyquist plot has a encirclement of (-1 + jo) point, the system is stable if
there are no poles of G(s) H(s) in right-half plane
there is one pole of G(s) H(s) in right-half plane
there is no zeros of G(s) H(s) in right-half plane
none of the above
⇒ In a single-stage RC coupled common emitter amplifier, the phase shift at the lower 3 dB frequency is
zero
135°
180°
225°
⇒ Which of the following devices should be used for accurate measurement of a low dc voltage?
Small range moving coil voltmeter
Dc potentiometer
Small range thermocouple voltmeter
Hot wire instrument
⇒ Consider a random noise voltage which has a uniform density function as shown in the figure and is known to be wh
2 bits/reading
5 bits/reading
10 bits/reading
none of these
⇒ Octal 16 is equal to decimal
13
14
15
16
⇒ The emitter coupled pair of BJT's gives a linear transfer relation between the differential output voltage and the differential input voltage V_{id} only when the magnitude of V_{id} is less a times the thermal voltage, where a is
4
3
2
1
⇒ In n type MOSFET, the substrate
is p type
is n type
is metallic
may be p or n type
⇒ In the op-amp circuit of figure, V_{0Vi3 Vi5 Vi0.5 Vi}
⇒ The problem of logic race occurs in
SOP functions
POS functions
Hybrid function
SOP and POS functions
⇒ A class A chopper has an input voltage of 200 V. T_{on} = 1.5 ms and T_{off} = 4.5 ms. The duty cycle, average output voltage and ripple factor respectively are
0.5, 100 V and 1
0.25, 50 V and 3
0.25, 50 V and 1
0.5, 100 V and 3
⇒ Silicon and germanium have diamond structure. The number of atoms in a volume equal to a^{3} where a is the edge of elementary cube are
32
16
8
4
⇒ A circuit is replaced by its Thevenin's equivalent to find current through a certain branch. If V_{TH} = 10 V and R_{TH} = 20 Ω, the current through the branch
will always be 0.5 A
will always be less than 0.5 A
will always be equal to or less than 0.5 A
may be 0.5 A or more or less
⇒ The 6 V zener diode shown in figure has zero zener resistance and a knee current of 5 mA. The minimum value of R, so that the voltage across it does not fall below 6
1.2 kΩ
80 Ω
50 W
0
⇒ Windows can run several tasks simultaneously.
TRUE
FALSE
⇒ An electron for which l = 0 has zero orbital magnetic dipole moment.
TRUE
FALSE
⇒ If ωε is the displacement current factor and s is conduction current density factor then which of the following statements is incorrect?
For a lossless dielectric σ = 0
For an imperfect dielectric σ = 0
For a dielectric ωε >> σ
For a semiconductor ωε = σ
⇒ The sum of two sine waves of different frequencies is a sine wave.
TRUE
FALSE
⇒ In figure the phase
will be 90° at ω = 0 and 0° at ω = ∞
will be 0° at ω = 0 and 90° at ω = ∞
will be 45° at ω = 0 and 0° at ω = ∞
will be 45° at ω = 0 and 90° at ω = ∞
⇒ (62)_{10} in binary system is
110000
111100
111110
111111
⇒ The colour of an object is decided by
the reflected colour
the wavelength transmitted through it
reflected colour for opaque object and wavelength transmitted through it for transparent objects
none of the above
⇒ What is the result for expression (map metho
A + D + BC
A + D
A D + B C
A + D + BC
⇒ The radiation pattern of loop antenna is
circle
semicircle
elliptical
cardoid or Limacon
⇒ For the circuit in figure, fed by a unit step voltage, v_{c1 - e-t/RCe-t/RCet/RC1}
⇒ D/A converters are generally
weighted resistor network
binary ladder network
either (a) or (b)
neither (a) nor (b)
⇒ Phase velocity of waves propagating in a hollow metal waveguide is
greater than the group velocity
less than the velocity of light in free space
equal to the velocity of light in free space
equal to group velocity
⇒
Assertion (A): Secondary instruments require calibration at frequent intervals.
Reason (R): Secondary instruments have many errors.
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 R is false
A is false R is true
⇒ The forbidden energy gap for germanium is
0.12 eV
0.32 eV
0.72 eV
0.92 eV
⇒ Ohmic range of metal film resistors is
1 to 100 ohms
10 to 1 K ohms
100 to 1 M ohms
100 to 100 M ohms
⇒ A line is excited by a 100 V, 200 ohm source and is terminated by 100 Ω resistance. If the voltage on line reaches steady value in 80 ns, the natural resonant frequency is
100 MHz
50 MHz
12.5 MHz
6.25 MHz
⇒
Match the following:
List I | List II | ||
---|---|---|---|
A. | IF noise | 1. | Ganged tuning |
B. | Image frequency | 2. | Spurious response |
C. | Station selector | 3. | Leaky filter capacitor |
D. | Excessive Hum | 4. | Mixer stage |
A-3, B-2, C-1, D-4
A-2, B-3, C-1, D-4
A-1, B-2, C-3, D-4
A-4, B-2, C-1, D-3
⇒ If Nyquist plot has a encirclement of (-1 + jo) point, the system is stable if
there are no poles of G(s) H(s) in right-half plane
there is one pole of G(s) H(s) in right-half plane
there is no zeros of G(s) H(s) in right-half plane
none of the above
⇒ In a single-stage RC coupled common emitter amplifier, the phase shift at the lower 3 dB frequency is
zero
135°
180°
225°
⇒ Which of the following devices should be used for accurate measurement of a low dc voltage?
Small range moving coil voltmeter
Dc potentiometer
Small range thermocouple voltmeter
Hot wire instrument
⇒ Consider a random noise voltage which has a uniform density function as shown in the figure and is known to be wh
2 bits/reading
5 bits/reading
10 bits/reading
none of these
⇒ Octal 16 is equal to decimal
13
14
15
16