Question is ⇒ In an op-amp differentiator, Options are ⇒ (A) the amplitude of output is proportional to rate of change of input, (B) the amplitude of output is proportional to input, (C) output occurs when input is finite and constant, (D) polarity of input and output is the same, (E) , Leave your comments or Download question paper.

Question is ⇒ In an op-amp differentiator, Options are ⇒ (A) the amplitude of output is proportional to rate of change of input, (B) the amplitude of output is proportional to input, (C) output occurs when input is finite and constant, (D) polarity of input and output is the same, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	In an op-amp differentiator
A.	the amplitude of output is proportional to rate of change of input [Correct Answer]
B.	the amplitude of output is proportional to input [Wrong Answer]
C.	output occurs when input is finite and constant [Wrong Answer]
D.	polarity of input and output is the same [Wrong Answer]
View Answer 1 -1 Explanation:- Answer : A Discuss it below : !! OOPS Login [Click here] is required to post your answer/result Help other students, write article, leave your comments

Previous question Next question

Also Read Similar Questions Below :

⇒ The degree of the nodes 1, 2, 3,
2
3
2 for 1, 2, 3, and 3 for 4
all 3

⇒ Which device uses Pneumatic fluid?
LED
LCD
VF display
None of these

⇒ In an R-L-C series circuit, R = 2/L/C . If R is doubled
the response will become underdamped
the response will become overdamped
the response will be critically damped
the response may be under damped or overdamped

⇒ The permeability of soft iron can be increased by
purifying it
reducing carbon percentage
alloying with cobalt
increasing percentage

⇒ The filter in figure, uses ideal op-amp. I
low pass filter
high pass filter
band pass filter
band stop filter

⇒ In degenerate p type semiconductor material, the Fermi level,
is in the valence band
is in conduction band
is at the centre in between valence and conduction bands
is very near conduction band

⇒ A thyristor has internal power dissipation of 40W and is operated at an ambient temperature of 20°C. If thermal resistance is 1.6° C/W, the junction temperature is
114°C
164°C
94° C
84° C

⇒ A transistor has a power rating of 8 W for a case temperature of 25°C. If derating factor is 30 mW/°C, the power rating for 55°C, case temperature is
8 W
7.5 W
7.1 W
6.8 W

⇒ When a thyristor is conducting, the voltage drop across it is about
1 V
10 V
100 V
0.1 V

⇒ If a microcomputer has a 64 K memory; what is the hexadecimal notations for the first memory location?
AAAA
FFFF
AAA0
0

⇒ Typical values of voltage gain for CE, CB and CC amplifiers are
100, 100 and 1 respectively
100, 1 and 100 respectively
100, 1 and 1 respectively
1, 100 and 100 respectively

⇒ In a cascade amplifier, the intermediate stages are always in
CC configuration
CB configuration
CE configuration
any of the above

⇒ The most noise resistant modulation system is
PCM
SSB suppressed carrier
FM
pulse position modulation

⇒ In an n channel JFET, V_GS = V_GS(off). Then
I_D is zero
I_D may be zero or positive
I_D is positive
I_D may be zero or negative

⇒ In a discharging R-L circuit voltage across the resistor exhibits
a linear rise
a linear decay
an exponential growth function
an exponential decay function

⇒ A signal g(t) = A then g(t) is a
energy signal
power signal
neither energy nor power signal
insufficient data

⇒ Which one of the following is not LED material?
GaAs
GaP
SiC
SiO₂

⇒ A FET has
very high input resistance
very low input resistance
high connection emitter junction
forward biased PN junction

⇒ Which of these has poor overload capacity?
PMMC instrument
Hot wire instrument
Dynamometer instrument
Both (a) and (c)

⇒ Fermi level in intrinsic semiconductor is at the centre of forbidden energy band.
TRUE
FALSE

⇒ Program counter in a digital computer
counts the number of programs run in the machine
counts the number of times a subroutine
counts the number of time the loops are executed
points the memory address of the current or the next instruction

⇒ For an m-derived filter, attenuation is infinite when f = f_∞.
TRUE
FALSE

⇒ In single phase half wave regulator, the average current over one full cycle
is always positive
may be positive or negative
may be negative
is always negative

⇒ The frequency of oscillation in a backward wave oscillator can be changed by
varying the voltage which controls beam velocity
varying the beam current
both by varying the beam current and by light varying the voltage which controls beam velocity
changing the rate of thermionic emission

⇒ A D' Arsonval galvanometer is a
moving coil instrument
moving iron instrument
dynamometer instrument
induction instrument

⇒ In a transistor E mode the collector current with the transistor in cut off region is
zero
high
equal to saturated value
none of the above

⇒ The maximum power dissipation capacity of a transistor is 50 mW. If the collector emitter voltage is 10 V, what is the safe collector current that can be allowed through the transistor?
5 mA
2.5 mA
10 mA
25 mA

⇒ If E (i.e., available energy state) = E_F(i.e., Fermi level), then probability that state E will be occupied is 0.5 for any temperature T.
TRUE
FALSE

⇒ If A = 3 + j1, A⁴
100 ∠18.43°
100 ∠73.72°
10 ∠18.43°
10 ∠73.72°

⇒ A two branch parallel tuned circuit has a capacitance C in one of the two branches and resistance R in second branchs. As C is decreased the dynamic resistance
increases
decreases
remains constant
may increases or decreases