Users Also Read
MCQ's Search Engine
Electrical Engineering
Mechanical Engineering
Civil Engineering
Automobile Engineering
Chemical Engineering
Computer Engineering
Electronics Engineering
Medical Science Engg
The MOSFET is almost ideal as a switching device because | |
A. | it has linear characteristics [Wrong Answer] |
B. | it works progressively [Wrong Answer] |
C. | it consumes low power [Correct Answer] |
D. | it has longer life [Wrong Answer] |
View Answer
Explanation:-
Answer : C Discuss it below : !! OOPS Login [Click here] is required to post your answer/result |
Also Read Similar Questions Below :
⇒ In the given figure the input frequency is such that R << X_{c},
v_{0} lags v_{i} by 90°
v_{0} leads v_{i} by 90°
v_{0} and v_{i} are in phase
either (b) or (c)
⇒ Bandwidth of an antenna is related with where Q is quality factor
Q ∝ B
Q ∝ 1/B
Q ∝ B^{2}
Q ∝ 1/B^{2}
⇒ The equation ∇ . J = 0 is called
Poisson's equation
Kirchoff's node equation
Continuity equation for static currents
Continuity equation for sampling currents
⇒ When the length of antenna is a whole wavelength
the radiation at right angles is zero
the radiation at right angles is maximum
the radiation is zero in all directions
the radiation is maximum in all directions
⇒ A virtual ground is a ground for
voltage
current
both voltage and current
voltage but not for current
⇒ Which of the following microphones has bidirectional feature?
Moving coil
Ribbon
Condenser
Carbon
⇒ The depth of modulation is doubled in FM system then, the power transmitted
increase by factor of 2
increase by factor of 3
increase by factor of 2
none of the above
⇒ The inductance of connecting leads can be a source of
low frequency parasitics
high frequency parasitics
carrier frequency parasitics
none of the above
⇒ In the above case the total power in the modulated wave double sideband, suppressed carrier AM will be
112 W
400 W
415 W
512 W
⇒ Which one of the following is an active component?
Diode (p-n)
Transistor as Amplifier
Transformer
Inductor
⇒ In the circuit shown in the fi
only red will glow
only green will glow
both red and green will glow
none will glow
⇒ The on voltage and forward breakover voltage of an SCR depend on
gate current alone
band gap of semiconductor alone
gate current and semiconductor band gap respectively
semiconductor band gap and gate current respectively
⇒ Why does a FM radio station perform better than and AM station radiating the same actual power?
FM is immune to noise
AM has only two sidebands while FM has more
FM uses larger bandwidth for large modulation depth.
Capture effects appears in FM.
⇒ An audio signal (say from 50 Hz to 10000 Hz) is frequency translated by a carrier having a frequency of 10^{6} Hz. The values of initial (without frequency translation) and final (after frequency translation) fractional change in frequency from one band edge to the other are
200 and 1.01
200 and 10.01
200 and 100.1
200 and 200
⇒ The following switching functions are to be implemented using a decoder
2 to 4 line
3 to 8 line
4 to 16 line
5 to 32 line
⇒ The multiplication of two n bit numbers gives a product of length less than or equal to
n bits
2^{n} bits
2n bits
2^{n} - 1 bits
⇒ During amplitude modulation, the phase angle of the modulating voltage changes by
0°
45°
90°
180°
⇒ The static characteristic of an adequately forward biased p-n junction is a straight line if the plot is of
log I vs log V
log I vs V
I vs log V
I vs V
⇒ An XOR gate with 8 variable is as foll
255
127
128
256
⇒ In a self bias circuit for CE amplifier the collector supply voltage is made twice. The collector current will
decrease
increase
remain the same
increase or decrease
⇒ The input gate current of FET is closer to
few amperes
few milli amperes
few microamperes
negligibly smaller value
⇒ Each cell of static RAM contains
4 MOS transistors
4 MOS transistors and 1 capacitor
2 MOS transistors
4 MOS transistors and 2 capacitors
⇒ In static RAM 6264 the number of address inputs are
10
12
13
15
⇒
A-1, B-2, C-3, D-4
A-3, B-1, C-2, D-4
A-2, B-3, C-4, D-1
A-4, B-1, C-2, D-3
⇒ For an ideal 3000 Hz channel, Nyquist rate is
3000 bps
6000 bps
9000 bps
12000 bps
⇒ When performing numerical calculations in floating point arithmetic
All
1 and 2 only
1 and 3 only
2 and 3 only
⇒ Which group of instructions is used to change sequence of operations in a computer program?
Data transfer group
Branch group
Arithmetic group
Logic group
⇒ A class D chopper
can operate in first quadrant only
can operate in second quadrant only
can operate in either first or fourth quadrant
can operate in all the quadrants
⇒ An homogeneous dielectric material is subjected to an electric field E. If a small cavity is made inside the material, the electric field intensity inside and outside the cavity are different.
TRUE
FALSE
⇒ Lowest resistivity of the following is
constantan
german silver
manganin
nichrome
⇒ In the given figure the input frequency is such that R << X_{c},
v_{0} lags v_{i} by 90°
v_{0} leads v_{i} by 90°
v_{0} and v_{i} are in phase
either (b) or (c)
⇒ Bandwidth of an antenna is related with where Q is quality factor
Q ∝ B
Q ∝ 1/B
Q ∝ B^{2}
Q ∝ 1/B^{2}
⇒ The equation ∇ . J = 0 is called
Poisson's equation
Kirchoff's node equation
Continuity equation for static currents
Continuity equation for sampling currents
⇒ When the length of antenna is a whole wavelength
the radiation at right angles is zero
the radiation at right angles is maximum
the radiation is zero in all directions
the radiation is maximum in all directions
⇒ A virtual ground is a ground for
voltage
current
both voltage and current
voltage but not for current
⇒ Which of the following microphones has bidirectional feature?
Moving coil
Ribbon
Condenser
Carbon
⇒ The depth of modulation is doubled in FM system then, the power transmitted
increase by factor of 2
increase by factor of 3
increase by factor of 2
none of the above
⇒ The inductance of connecting leads can be a source of
low frequency parasitics
high frequency parasitics
carrier frequency parasitics
none of the above
⇒ In the above case the total power in the modulated wave double sideband, suppressed carrier AM will be
112 W
400 W
415 W
512 W
⇒ Which one of the following is an active component?
Diode (p-n)
Transistor as Amplifier
Transformer
Inductor
⇒ In the circuit shown in the fi
only red will glow
only green will glow
both red and green will glow
none will glow
⇒ The on voltage and forward breakover voltage of an SCR depend on
gate current alone
band gap of semiconductor alone
gate current and semiconductor band gap respectively
semiconductor band gap and gate current respectively
⇒ Why does a FM radio station perform better than and AM station radiating the same actual power?
FM is immune to noise
AM has only two sidebands while FM has more
FM uses larger bandwidth for large modulation depth.
Capture effects appears in FM.
⇒ An audio signal (say from 50 Hz to 10000 Hz) is frequency translated by a carrier having a frequency of 10^{6} Hz. The values of initial (without frequency translation) and final (after frequency translation) fractional change in frequency from one band edge to the other are
200 and 1.01
200 and 10.01
200 and 100.1
200 and 200
⇒ The following switching functions are to be implemented using a decoder
- f_{1} = ∑m (1, 2, 4, 8, 10, 14)
- f_{2} = ∑m (2, 5, 9, 15)
- f_{3} = ∑m (2, 4, 5, 6, 7)
2 to 4 line
3 to 8 line
4 to 16 line
5 to 32 line
⇒ The multiplication of two n bit numbers gives a product of length less than or equal to
n bits
2^{n} bits
2n bits
2^{n} - 1 bits
⇒ During amplitude modulation, the phase angle of the modulating voltage changes by
0°
45°
90°
180°
⇒ The static characteristic of an adequately forward biased p-n junction is a straight line if the plot is of
log I vs log V
log I vs V
I vs log V
I vs V
⇒ An XOR gate with 8 variable is as foll
255
127
128
256
⇒ In a self bias circuit for CE amplifier the collector supply voltage is made twice. The collector current will
decrease
increase
remain the same
increase or decrease
⇒ The input gate current of FET is closer to
few amperes
few milli amperes
few microamperes
negligibly smaller value
⇒ Each cell of static RAM contains
4 MOS transistors
4 MOS transistors and 1 capacitor
2 MOS transistors
4 MOS transistors and 2 capacitors
⇒ In static RAM 6264 the number of address inputs are
10
12
13
15
⇒
Match the following:
List I (BHE, A0) | List II (Word is read/write) | ||
---|---|---|---|
A. | 0, 0 | 1. | 1 byte from/to odd address |
B. | 0, 1 | 2. | 1 byte from/to even address |
C. | 1, 0 | 3. | 16 bit word |
D. | 1, 1 | 4. | None |
A-1, B-2, C-3, D-4
A-3, B-1, C-2, D-4
A-2, B-3, C-4, D-1
A-4, B-1, C-2, D-3
⇒ For an ideal 3000 Hz channel, Nyquist rate is
3000 bps
6000 bps
9000 bps
12000 bps
⇒ When performing numerical calculations in floating point arithmetic
- Error may occur due to finite representation of numbers.
- Error may occur due to rounding.
- Error may occur due to finite representation of inherently infinite process.
All
1 and 2 only
1 and 3 only
2 and 3 only
⇒ Which group of instructions is used to change sequence of operations in a computer program?
Data transfer group
Branch group
Arithmetic group
Logic group
⇒ A class D chopper
can operate in first quadrant only
can operate in second quadrant only
can operate in either first or fourth quadrant
can operate in all the quadrants
⇒ An homogeneous dielectric material is subjected to an electric field E. If a small cavity is made inside the material, the electric field intensity inside and outside the cavity are different.
TRUE
FALSE
⇒ Lowest resistivity of the following is
constantan
german silver
manganin
nichrome