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Consider the following
| |
A. | 1, 2 and 3 [Correct Answer] |
B. | 1 and 2 only [Wrong Answer] |
C. | 1 only [Wrong Answer] |
D. | 2 and 3 only [Wrong Answer] |
View Answer
Explanation:-
Answer : A Discuss it below : !! OOPS Login [Click here] is required to post your answer/result |
Also Read Similar Questions Below :
⇒ For the two port of figure, z_{2226/7 Ω6/7 Ω2/3 Ω1 Ω}
⇒
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
⇒ A characteristic property of crystal is its periodicity of structure.
TRUE
FALSE
⇒ An electromagnetic wave is incident normally on a dielectric boundary. It is
totally reflected
partially reflected and partially refracted
totally absorbed
none of the above
⇒ A full wave diode rectifier using centre tapped transformer has diodes with forward resistance of 50 ohms each. The load resistance of 50 ohms each. The load resistance is also 50 ohms. The voltage regulation is
0.2
0.5
1
2
⇒ In a multicavity klystron amplifier the electron velocity of the order of
10 m/s
10^{3} m/s
10^{6} m/s
10^{12} m/s
⇒ A signal m(t) with bandwidth 500 Hz is first multiplied by a signal g(t) w
δ(t)
m(t)
0
m(t) δ(t)
⇒ A capacitor whose capacitance C_{t} = C_{0} (1- cos ωt) is fed by a sinusoidal voltage v = V_{0} sin ωt. The equation for current i is
ω C_{0}V_{0} cos ωt
ω C_{0}V_{0} sin ωt
ω C_{0}V_{0} (cos ωt - cos^{2} ωt)
none of the above
⇒ A ship-to-ship communication system is plagued by fading. The best solution seems to be the use of
space diversity
frequency diversity
a broad band antenna
a more directional antenna
⇒ The n state variables can be considered as n components of a state vector.
TRUE
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⇒ The current gain of a transistor is the ratio of
emitter current to base current
emitter current to collector current
collector current to base current
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⇒ An RC coupled amplifier has an open loop gain of 200 and a lower cutoff frequency of 50 Hz. If negative feedback with β = 0.1 is used, the lower cut off frequency will be
about 50 Hz
about 5 Hz
about 2.38 Hz
about 70.5 Hz
⇒ The normal operation of JFET is
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constant current region
both constant voltage and constant current regions
either constant voltage or constant current region
⇒ Kirchoff's laws are applicable to
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transient conditions only
both steady state and transient condition
both steady state and transient condition but with some constraints
⇒ When duct propagation exists
the line of sight and diffraction. Zone concepts are payable
the line of sight and diffraction zone concepts are not applicable
line of sight concept is applicable but diffraction zone concept is applicable
diffraction zone concept is not applicable but line of sight concept is not applicable
⇒ Temporary register in 8085 is a 16 bit register.
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⇒ Which of the following is not correct?
Voltmeter should have a very high resistance
An ammeter should have a very low resistance
A shunt should have a very low resistance
An electronic voltmeter draws appreciable current from source
⇒ An input voltage V(t) = 10 2 cos (t + 10°) + 10 3 cos (2t + 10°)V is applied to a series combination of resistance R = 1 kΩ inductance L = 1H. The resulting steady-state current i(t) in ampere is
10 cos (t + 55°) + 10 cos (2t + 10° tan^{-1}2)
10 cos (t + 55°) + 103/2 cos (2t + 55°)
10 cos (t - 35) + 10 cos (2t + 10° - tan^{-1}2)
10 cos (t - 35) + 103/2 cos (2t + 35°)
⇒ The output v-i characteristics of enhancement type MOSFET has
only an ohmic region
only a saturation region
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a saturation region at low voltage value and an ohmic region at high voltage
⇒ As per Matthiessen's rule, the total resistivity r of a conductor can be written as r = r_{i} + aT, where r_{i} and a are constants and T is absolute temperature. At very low temperatures
aT = 0
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aT ∼ r_{i}
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⇒ When a current carrying conductor is brought into magnetic field, the force that moves the conductor depends upon
the value of current
the weight of the conductor
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⇒ The total electrical energy emitted overall space from an electron of charge e and radius r is
e/ε_{0}r^{2}
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⇒ Examine the following statements
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⇒ The charge per proton is
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⇒ In a CE amplifier drives a low load resistance directly the result will be
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0020 H
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⇒ A dc voltage source is connected across a series RLC circuit, Under steady state conditions, the applied dc voltage drops entirely across the
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⇒ Two wattmeter method is suitable only for balanced loads.
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⇒ If a common emitter amplifier with an emitter resistance R_{C} has an overall transconductance gain of 1 m A/V, a voltage gain of - 4 and desensitivity of 50, then the value of the emitter resistance R would be
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0.98 kΩ
50 Ω
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⇒ Which of the following statement is false?
A half-wave dipole is a resonant antenna
A horizontal antenna transmits radio signal with horizontal polarization
The field strength of 200 mV/m will produced 200 μV of signal in an antenna 2 m long
All of the above
⇒ For the two port of figure, z_{2226/7 Ω6/7 Ω2/3 Ω1 Ω}
⇒
Assertion (A): A non-sinusoidal wave can be expressed in terms of sine waves of different frequencies which are multiples of the frequency of fundamental.
Reason (R): If negative half of a complex wave is a reproduction of the positive half, the even harmonics are absent.
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
⇒ A characteristic property of crystal is its periodicity of structure.
TRUE
FALSE
⇒ An electromagnetic wave is incident normally on a dielectric boundary. It is
totally reflected
partially reflected and partially refracted
totally absorbed
none of the above
⇒ A full wave diode rectifier using centre tapped transformer has diodes with forward resistance of 50 ohms each. The load resistance of 50 ohms each. The load resistance is also 50 ohms. The voltage regulation is
0.2
0.5
1
2
⇒ In a multicavity klystron amplifier the electron velocity of the order of
10 m/s
10^{3} m/s
10^{6} m/s
10^{12} m/s
⇒ A signal m(t) with bandwidth 500 Hz is first multiplied by a signal g(t) w
δ(t)
m(t)
0
m(t) δ(t)
⇒ A capacitor whose capacitance C_{t} = C_{0} (1- cos ωt) is fed by a sinusoidal voltage v = V_{0} sin ωt. The equation for current i is
ω C_{0}V_{0} cos ωt
ω C_{0}V_{0} sin ωt
ω C_{0}V_{0} (cos ωt - cos^{2} ωt)
none of the above
⇒ A ship-to-ship communication system is plagued by fading. The best solution seems to be the use of
space diversity
frequency diversity
a broad band antenna
a more directional antenna
⇒ The n state variables can be considered as n components of a state vector.
TRUE
FALSE
⇒ The current gain of a transistor is the ratio of
emitter current to base current
emitter current to collector current
collector current to base current
collector current to emitter current
⇒ An RC coupled amplifier has an open loop gain of 200 and a lower cutoff frequency of 50 Hz. If negative feedback with β = 0.1 is used, the lower cut off frequency will be
about 50 Hz
about 5 Hz
about 2.38 Hz
about 70.5 Hz
⇒ The normal operation of JFET is
constant voltage region
constant current region
both constant voltage and constant current regions
either constant voltage or constant current region
⇒ Kirchoff's laws are applicable to
steady state conditions only
transient conditions only
both steady state and transient condition
both steady state and transient condition but with some constraints
⇒ When duct propagation exists
the line of sight and diffraction. Zone concepts are payable
the line of sight and diffraction zone concepts are not applicable
line of sight concept is applicable but diffraction zone concept is applicable
diffraction zone concept is not applicable but line of sight concept is not applicable
⇒ Temporary register in 8085 is a 16 bit register.
TRUE
FALSE
⇒ Which of the following is not correct?
Voltmeter should have a very high resistance
An ammeter should have a very low resistance
A shunt should have a very low resistance
An electronic voltmeter draws appreciable current from source
⇒ An input voltage V(t) = 10 2 cos (t + 10°) + 10 3 cos (2t + 10°)V is applied to a series combination of resistance R = 1 kΩ inductance L = 1H. The resulting steady-state current i(t) in ampere is
10 cos (t + 55°) + 10 cos (2t + 10° tan^{-1}2)
10 cos (t + 55°) + 103/2 cos (2t + 55°)
10 cos (t - 35) + 10 cos (2t + 10° - tan^{-1}2)
10 cos (t - 35) + 103/2 cos (2t + 35°)
⇒ The output v-i characteristics of enhancement type MOSFET has
only an ohmic region
only a saturation region
an ohmic region at low voltage value and a saturation region at high voltage
a saturation region at low voltage value and an ohmic region at high voltage
⇒ As per Matthiessen's rule, the total resistivity r of a conductor can be written as r = r_{i} + aT, where r_{i} and a are constants and T is absolute temperature. At very low temperatures
aT = 0
aT > r_{i}
aT ∼ r_{i}
aT < r_{i}
⇒ When a current carrying conductor is brought into magnetic field, the force that moves the conductor depends upon
the value of current
the weight of the conductor
the direction of the conductor
none of the above
⇒ The total electrical energy emitted overall space from an electron of charge e and radius r is
e/ε_{0}r^{2}
e^{2}/ε_{0}r
e^{2}/4pε_{0}r^{2}
e^{2}/8pε_{0}r
⇒ Examine the following statements
- Air and gases are compressible.
- Air, gases and some liquids are compressible.
- Oil can function as hydraulic fluid as well as lubricator.
3 only
2 and 3 only
1 and 3 only
2 only
⇒ The charge per proton is
1.6 x 10^{-19} C
2.6 x 10^{-19} C
0.6 x 10^{-19} C
1.6 x 10^{-13} C
⇒ In a CE amplifier drives a low load resistance directly the result will be
overloading of amplifier
underloading of amplifier
overloading or underloading of amplifier depending on circuit
none of the above
⇒ In 8085 microprocessor, when TRAP interrupt is triggered program control is transferred to location
0020 H
0024 H
0028 H
002 CH
⇒ A dc voltage source is connected across a series RLC circuit, Under steady state conditions, the applied dc voltage drops entirely across the
R only
C only
L only
R and L
⇒ Two wattmeter method is suitable only for balanced loads.
TRUE
FALSE
⇒ If a common emitter amplifier with an emitter resistance R_{C} has an overall transconductance gain of 1 m A/V, a voltage gain of - 4 and desensitivity of 50, then the value of the emitter resistance R would be
50 kΩ
0.98 kΩ
50 Ω
0.98 Ω
⇒ Which of the following statement is false?
A half-wave dipole is a resonant antenna
A horizontal antenna transmits radio signal with horizontal polarization
The field strength of 200 mV/m will produced 200 μV of signal in an antenna 2 m long
All of the above