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A series RC circuit has fixed R and C and variable f. The current locus will lie in the first quadrant. | |
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 |
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y[n] = x[n] x[n - 1]
y[n] = x[n/2]
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4.7 dB/m
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⇒ In a conventional AM superhetrodyne receivers, the detectors employed to extract intelligence include
Peak detectors
Ratio detectors
PLL
Slope detectors
⇒ Inductors used at V.H.F. are made using
air core
cast iron cored
sheet steel cored
thin film technique
⇒ The source of the harmonic distortion in a RC coupled transistor amplifier is usually
power supply
capacitor
R-C circuit
transistor
⇒ The range of values of a and b for which the linear time invariant system with impulse respon
|a| > 1, |b| > 1
|a| < 1, |b| < 1
|a| < 1, |b| > 1
|a| > 1, |b| < 1
⇒ Lowest noise can be expected in case of
carbon composition resistors
carbon film resistors
tin oxide resistors
metal film resistors
⇒ The main feature of a parametric amplifier is
low noise
very high gain
broad bandwidth
both (b) and (c)
⇒ The output of a half adder is
SUM
CARRY
SUM and CARRY
none of the above
⇒ In any two port network, input impedance is independent of load impedance.
TRUE
FALSE
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TRUE
FALSE
⇒ The first dominant pole encountered in the frequency response of a compensated op-amp is approximately at
5 Hz
10 kHz
1 MHz
100 MHz
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- allow accurate range measurement
- allow good minimum range
- prevent frequency changes in magnetron
- make the returned echoes easier to distinguish from noise.
1, 2, 3, 4
1, 2, 3
1, 2
1, 3, 4
⇒ At resonance the network function magnitude will be
k/a
k/b
c
k/a + b
⇒ A voltage of about 200 V dc can be measured
directly by dc potentiometer
by dc potentiometer in conjunction with a volt ratio box
a dc potentiometer in conjunction with a known resistance
both (b) and (c)
⇒
Match the following:
List I (Operator) | List II (Description) | ||
---|---|---|---|
A. | & & | 1. | Assignment |
B. | | | | 2. | Logical AND |
C. | = | 3. | Logical OR |
A-1, B-2, C-3
A-2, B-3, C-1
A-3, B-2, C-1
A-1, B-3, C-2
⇒ A balun transformer gives an impedance transformation of
0.167361111111111
0.0840277777777778
0.0444444444444444
0.0430555555555556
⇒ As compared to an ordinary semiconductor diode, a Schottky diode
has higher reverse saturation current
has higher reverse saturation current and higher cut in voltage
has higher reverse saturation current and lower cut in voltage
has lower reverse saturation current and lower cut in voltage