Question is ⇒ Consider the following statements <ol style="list-style-type: decimal; padding-bottom:10px;"><li style="padding-top:10px;">An iron cored choke is non linear and passive device.</li><li style="padding-top:10px;">A carbon resistor kept in sunlight is a time invariant and passive device.</li><li style="padding-top:10px;">A dry cell is a time varying and active device.</li><li style="padding-top:10px;">An air capacitor is time invariant and passive device.</li></ol> Of these statements, Options are ⇒ (A) 1, 2, 3 and 4 are correct, (B) 1, 2, 3 are correct, (C) 1, 2, 4 are correct, (D) 2 and 4 are correct, (E) , Leave your comments or Download question paper.

Question is ⇒ Consider the following statements <ol style="list-style-type: decimal; padding-bottom:10px;"><li style="padding-top:10px;">An iron cored choke is non linear and passive device.</li><li style="padding-top:10px;">A carbon resistor kept in sunlight is a time invariant and passive device.</li><li style="padding-top:10px;">A dry cell is a time varying and active device.</li><li style="padding-top:10px;">An air capacitor is time invariant and passive device.</li></ol> Of these statements, Options are ⇒ (A) 1, 2, 3 and 4 are correct, (B) 1, 2, 3 are correct, (C) 1, 2, 4 are correct, (D) 2 and 4 are correct, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	Consider the following statements An iron cored choke is non linear and passive device. A carbon resistor kept in sunlight is a time invariant and passive device. A dry cell is a time varying and active device. An air capacitor is time invariant and passive device. Of these statements
A.	1, 2, 3 and 4 are correct [Correct Answer]
B.	1, 2, 3 are correct [Wrong Answer]
C.	1, 2, 4 are correct [Wrong Answer]
D.	2 and 4 are correct [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 :

⇒ Current having waveform in figure flows through 10 Ω resistance. Average powe
1000 W
500 W
333.3 W
250 W

⇒ The 1150 kg geosynchronous satellite INSAT-IA parked 36000 km above India had greatly improved India's
intelligence gathering capacity
domestic communications
meteorological capability
both (b) and (c)

⇒

Assertion (A): Points in the s plane at which function G(s) is not analytic are called singular, points.

Reason (R): Singular points at which the function G(s) or its derivative approach infinity are called poles.

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

⇒ It is desired to reduce distortion in an amplifier from 8% to 2% by using 5% negative feedback. The open and closed loop gains respectively are
60 and 15
15 and 60
6 and 1.5
1.5 and 6

⇒ The current I_CBO flows in
base and emitter leads
base and collector leads
collector and emitter leads
collector, emitter and base leads

⇒ Silicon and germanium are elements in the
second column of periodic table
third column of periodic table
fourth column of periodic table
fifth column of periodic table

⇒ In a pulsed RADAR typical value of pulse duration and pulse frequency respectively are
1 μs and 50 Hz
1 μs and 500 Hz
4 μs and 50 Hz
4 μs and 500 Hz

⇒ Which of the following is a valid integer constant?
127
127
127
125 + 3

⇒ A waveguide behave as
high Pass filter
low Pass filter
band Pass filter
all Pass filter

⇒ The dynamic equalising circuit consists of a series combination of capacitor C and resistor R_C across each thyristor. This resistance R_C (along with parallel connected diode)
limits charging current
limits discharging current
limits both charging and discharging currents
none of the above

⇒ Select the correct relation
∇(AB) = A ∇ B + B ∇ A
∇ . (AB) = ∇ A . B + A ∇ B
∇ x (AB) = ∇ A x B + A ∇ B
All of the above

⇒ In which of the following 8085 instructions no condition flags are affected?
INX rp
INR r
SBI data
INR M

⇒ A dynamometer wattmeter is connected in ac circuit. The reading will be
V-A product
average power
peak power
instantaneous power

⇒ A vertical loop antenna, like a horizontal dipole, is vertically polarised.
TRUE
FALSE

⇒ The impulse response of the DT - LTI system is given be
1 and 2
2 and 3
1 and 3
1, 2 and 3

⇒ The first geostationary satellite launched in 1965 was called
ANIK
EARLY BIRD (Intelsat-I)
WESTAR
MOLNIYA

⇒ In saturation region JFET acts like a
bipolar device
short circuit
switch
resistance

⇒ For a given voltage, four heating coils will produce maximum heat when connected
all in parallel
all in series
with two parallel pairs in series
one pair in parallel with the other two in series

⇒ Homodyne detection means
coherent detection
non-coherent detection
asynchronous detection
none of the above

⇒ For a photoconductor with equal electron and hole mobilities and perfect ohmic contacts at the ends, an increase in illumination results in
a change in O.C. voltage
a change in S.C. current
a decrease in resistance
an increase in resistance

⇒ An SCR has a turn on time of 4 μs. The gate pulse should have a duration of about
2 μs
5 μs
20 μs
50 μs

⇒ Avalanche beakdown is primarily dependent on the phenomenon of
doping
collision
recombination
ionization

⇒

Assertion (A): Hay's bridge in particularly suitable for measuring inductance having a comparatively low resistance.

Reason (R): In Hay's bridge the value of frequency supply must be known.

Both A and R are true and R is correct explanation of A
Both A and R are true but R is not correct explanation of A
A is true R is false
A is false R is true

⇒ Which has the lowest propagation delay time?
ECL
TTL
CMOS
PMOS

⇒ The damping coefficient for the given circuit is _______
42737
42739
2
1

⇒ The Lissajous pattern observed on screen of CRO is a straight line inclined at 45° to x axis. If X-plate input is 2 sin ωt, the Y-plate input is
2 sin ωt
2 sin (ωt + 45°)
2 sin (ωt - 45°)
22 sin ωt + 45°)

⇒ The scale of thermocouple instrument is linear.
TRUE
FALSE

⇒ In gases the flow of current is due to
positive ions only
electrons only
electrons, positive ions and negative ions
electrons and positive ions

⇒ Force = Electric intensity x current.
TRUE
FALSE

⇒ The maximum effective aperture of an antenna which is operating at wavelength of 2 m and has directivity of 100 is
15.92
31.84
2.18
3.184