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Piezoelectricity means the slight change in dimensions of a specimen when an electric field is applied. | |
A. | TRUE [Correct Answer] |
B. | FALSE [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 :
⇒ The current I in the circuit show
- j1 A
j1 A
0
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⇒ MOSFET can be used as a
current controlled capacitor
voltage controlled capacitor
current controlled inductor
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⇒ Which op-amp circuit uses a diode as one of the circuit components?
Integrating amplifier
Differentiating amplifier
Logarithmic amplifier
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⇒ Which of the following statements is not true in regard to storage time of a diode?
During this time, the diode is reverse-biased
The diode conducts during this time
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During this time the diode current is zero
⇒ A monostable multivibrator has
no stable state
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⇒ The code used to reduce the error due to ambiguity in reading of a binary optical encoder is
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⇒ Calculate the wave number in waveguide having dimensions 4 x 2 cm at 3 GHz
6.28
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⇒ As compared to a full wave diode rectifier circuit using centre tapped transformer, the bridge diode rectifier circuit has the main advantage of
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⇒ Natural commutation can be used in :
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⇒ A counter displays a sequence of numbers. If a reading corresponds to the hexadecimal number F52E, the next two readings are respectively
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⇒ In figure v_{1} = 8 V and v_{2} = 8 V. Which diode will cond
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⇒ Subroutines are used in larger programs not
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⇒ In terms of classical representation of electrons
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PUT
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⇒ If F(jω) is the Fourier transform of f(t), then
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£ f(- t) = F(- jω)
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⇒ If a driving point function N(s) = p(s)/q(s), then
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⇒ Which of the following periodic waveforms will have only odd harmonics of sinusoidal wavef
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⇒ The current I in the circuit show
- j1 A
j1 A
0
20 A
⇒ MOSFET can be used as a
current controlled capacitor
voltage controlled capacitor
current controlled inductor
voltage controlled inductor
⇒ Which op-amp circuit uses a diode as one of the circuit components?
Integrating amplifier
Differentiating amplifier
Logarithmic amplifier
Summing amplifier
⇒ Which of the following statements is not true in regard to storage time of a diode?
During this time, the diode is reverse-biased
The diode conducts during this time
It is due to the time taken by carriers to depart from the function when the diode is reverse-biased
During this time the diode current is zero
⇒ A monostable multivibrator has
no stable state
one stable state
two stable state
none of the above
⇒ The code used to reduce the error due to ambiguity in reading of a binary optical encoder is
Octal code
Excess-3 code
gray code
BCD code
⇒ The transfer function V_{2}/V_{1} for figure
a zero at origin
a zero at infinity
no zero
a zero at j1
⇒ Calculate the wave number in waveguide having dimensions 4 x 2 cm at 3 GHz
6.28
62.8
8
0
⇒ As compared to a full wave diode rectifier circuit using centre tapped transformer, the bridge diode rectifier circuit has the main advantage of
higher current carrying capacity
higher efficiency
lower ripple factor
lower PIV
⇒ Natural commutation can be used in :
DC circuits only
AC circuits only
both AC and DC circuits
none of the above
⇒ In a digital measuring device the input electrical signal is in the frequency range of dc to ac (50) Hz. It must be sampled at a rate of
f times/sec
0.5 f times/sec
0.25 f times/sec
2 f times/sec
⇒ A CB amplifier has r_{e} = 6 Ω, R_{L} = 600 Ω and a = 0.98. The voltage gain is
100
600 x 0.98
98
6
⇒ In the above case the modulation index will be
9.6
28.8
57.6
100
⇒ A counter displays a sequence of numbers. If a reading corresponds to the hexadecimal number F52E, the next two readings are respectively
F52F, F520
F530, F531
F52F, F530
F52F, F52G
⇒ In figure v_{1} = 8 V and v_{2} = 8 V. Which diode will cond
D_{1} only
D_{2} only
Both D_{1} and D_{2}
Neither D_{1} nor D_{2}
⇒ The Laplace transform of impulse δ(t) is
1
1/s
s
1/s^{2}
⇒ Subroutines are used in larger programs not
to increase the programming case
to reduce storage equipment
to reduce program extension time
for ease of program testing at the program development time
⇒ For an n-channel enhancement type MOSFET, if the source is connected at a higher potential than that of the bulk (V_{SB} > 0), the threshold voltage V_{T} of the MOSFET will
remain unchanged
decrease
change Polarity
increase
⇒ In terms of classical representation of electrons
an atom is essentially empty
an atom is essentially full
an atom may be essentially empty or full depending on the material
an atom may be essentially empty or full depending on temperature
⇒ Fleming's left hand rule is used to find
direction of force on a current carrying conductor
direction of flux in solenoid
direction of magnetic field due to a current carrying conductor
direction of induced emf
⇒ The symbol in figure is
UJT
PUT
SCS
SBS
⇒ If F(jω) is the Fourier transform of f(t), then
£ f(- t) = F(jω)
£ f(- t) = F* (jω)
£ f(- t) = F(- jω)
£ f(- t) = F* (- jω)
⇒ If a driving point function N(s) = p(s)/q(s), then
the terms of lowest degree in p(s) and q(s) may differ in degree by zero only
the terms of lowest degree in p(s) and q(s) may differ by one at the most
the terms of lowest degree in p(s) and q(s) may differ in degree by two at the most
the terms of lowest degree in p(s) and q(s) may differ in degree by three at the most
⇒ Present day stereophonic systems have
only CD playback facility
only tape playback facility
both CD and tape playback facilities along with radio
none of the above
⇒ A three-section RC phase shift oscillator has R = 10K ohms and C = 0.001 μF. The frequency of oscillations is
1.1 kHz
2.5 kHz
3.3 kHz
6.5 kHz
⇒ If a function has only cosine terms, it must satisfy the equation
f(t) = -f(t)
f(-t) = f(t)
f(-t) = -f(t)
none of the above
⇒ Bellows converts
pressure difference into displacement
pressure difference into voltage
displacement into pressure difference
either (a) or (c)
⇒ A D-flip-flop is
dial type flip-flop
delay flip-flop
differential flip-flop
digital flip-flop
⇒ Consider the following two statements about the internal conditions in an n-channel MOSFET operating in the active re
Only S2 is true
Both S1 and S2 are false
Both S1 and S2 are true, but S2 is not a reason for S1
Both S1 and S2 are true, and S2 is a reason for S1
⇒ Which of the following periodic waveforms will have only odd harmonics of sinusoidal wavef
1 and 2
1 and 3
1 and 4
2 and 4