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A multivibrator generates | |
A. | sinusoidal waveforms [Correct Answer] |
B. | non-sinusoidal waveforms [Wrong Answer] |
C. | both (a) and (b) [Wrong Answer] |
D. | none of the above [Wrong Answer] |
View Answer
Explanation:-
Answer : A Discuss it below : !! OOPS Login [Click here] is required to post your answer/result |
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⇒ The range of values of a and b for which the linear time invariant system with impulse respon
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TRUE
FALSE
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NPN transistor
PNP transistor
SCR
Vacuum triode
⇒ A conductor has a cylindrical shape with a diameter d. Its resistance is 2 Ω. It is recast into a cylindrical conductor of diameter 0.3d. The resistance of new conductor is likely to be
less than 2 Ω
less than 0.6 Ω
between 2 and 100 Ω
more than 100 Ω
⇒ Absolute permeability (μ) is given by __________ henry/metre
4p x 10^{-12}
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8.854 x 10^{-12}
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⇒ Find the output voltage for 011100 in a 6 bit R-2R ladder D/A converter has a reference voltage of 6.5 V.
6.4 V
2.84 V
0.1 V
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⇒ A network has only independent current sources and resistance. If values of all resistors are doubled, the values of node voltages
will become half
will remain unchanged
will become double
cannot be determined unless circuit configuration and values of resistors are known
⇒ An increase in ambient temperature means that maximum power rating of transistor
will increase
will decrease
may increase or decrease
may increase or remain the same
⇒ The spectral component of noise associated with k^{th} frequency is given, in the limit as Δf → 0 by n_{k}(t) written as n_{k}(t) = C_{k} cos (2pk Δft + θ_{k1, 2 only1, 3 only1, 2, 32, 3 only}
⇒ The range of signed decimal number that can be represented by 6 bit in complement number is
-31 to +31
-63 to +64
-64 to +63
-32 to +31
⇒ Which of the following statement is wrong?
A depletion type N-channel MOSFET conducts even when V_{GS} = 0
A BJT is very sensitive to radiation whereas FET is relatively immune
Bipolars need higher supply voltage than FETs
Both N-channel as well as p-channel JFETs work in the depletion mode
⇒ Since noise phase modulated FM wave, as the noise sideband frequency approaches the carrier frequency, the noise amplitude
is equalized
is increased
is decreased
remains constant
⇒ The V MOS can handle __________ currents than a conventional MOSFET.
much lower
almost same
almost half
much larger
⇒ The V_{o} of the op-amp circuit shown in the give
11 V_{i}
10 V_{i}
V_{i}
zero
⇒ The turn on time of an SCR is 5 micro second. Its trigger pulse should have
short rise time with pulse width = 2.5 μs
long rise time with pulse width = 3 μs
short rise time with pulse width = 4 μs
long rise time with pulse width = 4 μs
⇒
Assertion (A): Derivative control action is also called rate control and has an anticipatory character.
Reason (R): Derivative control amplifies noise signals.
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 correct but R is wrong
R is correct but A is wrong
⇒ T-flip-flop is commonly used as
a delay switch
a digital counter only
a digital counter and frequency divider
any of the above
⇒ Convolution of x(t + 5) with impulse function δ(t - 7) is equal to
x(t - 2)
x(t + 12)
x(t - 12)
(t + 2)
⇒ A Hall effect transducer has K_{H} = - 1 x 10^{-8}. If B = 1 Wb/m^{2}, I = 3 A and bismuth slab is 2 mm wide, the Hall voltage is
-7.5 x 10^{-6} V
-15 x 10^{-6}
-20 x 10^{-4} V
-22.5 x 10^{-4} V