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Assertion (A): Relative permittivity is determined by the atomic structure of the material. Reason (R): Absolute permittivity is determined by the atomic structure of the material. | |
A. | Both A and R are true and R is correct explanation of A [Wrong Answer] |
B. | Both A and R are true but R is not correct explanation of A [Wrong Answer] |
C. | A is true but R is false [Correct Answer] |
D. | A is false but R is true [Wrong Answer] |
View Answer
Explanation:-
Answer : C Discuss it below : !! OOPS Login [Click here] is required to post your answer/result |
Also Read Similar Questions Below :
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TRUE
FALSE
⇒ The current in a p-n junction diode with V volts applied in p region relative to n region (where I_{0} is reverse saturation current, m is ideality factor, k is Boltzmann's constant, T is absolute temp and q is charge on electron) is
I_{0} (e^{-qV/mkT} - 1)
I_{0} e^{-qV/mkT}
I_{0} (e^{qV/mkT})
I_{0} (e^{qV/mkT} - 1)
⇒ Two resistance R_{1} and R_{2} are connected in series R_{1} = 528 ± 5 Ω and R_{2} = 325 ± 3Ω. The total resistance will be
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⇒ Frequencies in the UHF range propagate by means of
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⇒ Mobility of electrons and holes are equal.
TRUE
FALSE
⇒ The current in a p-n junction diode with V volts applied in p region relative to n region (where I_{0} is reverse saturation current, m is ideality factor, k is Boltzmann's constant, T is absolute temp and q is charge on electron) is
I_{0} (e^{-qV/mkT} - 1)
I_{0} e^{-qV/mkT}
I_{0} (e^{qV/mkT})
I_{0} (e^{qV/mkT} - 1)
⇒ Two resistance R_{1} and R_{2} are connected in series R_{1} = 528 ± 5 Ω and R_{2} = 325 ± 3Ω. The total resistance will be
853 ± 2 Ω
853 ± 5 Ω
853 ± 3 Ω
853 ± 8 Ω
⇒ Frequencies in the UHF range propagate by means of
space wave
surface waves
sky waves
ground waves
⇒ Typical values of current gains for CE, CB and CC amplifiers are
120, 120 and 1 respectively
120, 1 and 120 respectively
1, 120 and 120 respectively
1, 1 and 120 respectively
⇒ A single phase cycloconverter feeds a resistance heating load. The heating power is provided by
only the fundamental component of output wave
only higher harmonics in the output wave
both fundamental and higher harmonics in the output wave
either (a) or (b)
⇒ The conductivity of materials found in nature ranges from 10^{9} ohm^{-1}m^{-1} to nearly 10^{18} ohm^{-1} m^{-1} from this it can be concluded that the conductivity of silicon in ohm^{-1} cm^{-1} will be nearly
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Both A and R are correct and R is correct explanation of A
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⇒ A voltage tripler circuit uses
2 diodes and 2 capacitors
3 diodes and 3 capacitors
2 diodes and 3 capacitors
3 diodes and 2 capacitors
⇒ In a JK flip flop toggle means
set Q = 1 and Q = 0
set Q = 0 and Q = 1
change the output to the opposite state
no change in output
⇒ An op-amp integrating circuit uses
an inductor
a capacitor
both inductor and capacitor
none of the above
⇒ For a second order system, damping ratio ζ is such that 0 < ζ <. Then the roots of characteristic equation are
real but not equal
real and equal
complex conjugate
imaginary
⇒ Which of the following is true?
The poisson distribution is limiting case of binomial distribution.
In symmetrical distribution, the mean, median and mode coincide.
Regression is the estimation or production of unknown values of one variables from known values of another variable.
All are true.
⇒ In Z_{RC} (s) = 0 at s =∞, the last element in second Foster realization will be
R
C
R and C in series
R and C in parallel
⇒ All digital circuits can be realised using only
EX-OR gates
Multiplexers
Half adders
OR gates
⇒ A resistance strain gauge has a resistance of about
100 Ω
25 Ω
10 Ω
1 Ω
⇒ The Thevenin equivalent circuit to the left of AB has R_{eq2 Ω4 Ω1 Ω3 Ω}
⇒ A transmitter radiates a power 20 KW and its base current is 18A. The radiation resistance of the antenna is
1111 Ω
900 Ω
75 Ω
62 Ω
⇒ In a Hurwitz polynomial
all coefficients are non-negative
both the odd and even parts have roots on jω axis
the continued fraction expansion is the ratio of odd to even parts of a Hurwitz polynomial yields all positive quotient terms
all of the above
⇒ Consider the following in C
4 and 300 respectively
4.2 and 300.00 respectively
4 and 300.00 respectively
⇒ Which device changes parallel data to serial data?
Decoder
Multiplexer
Demultiplexer
Flip flop
⇒ A sine wave is passed through an amplifier which severely limits it symmetrically. If then passes to a second amplifier which is narrow band and tuned to the frequency of the original sine wave. What will be the output wave from this second amplifier?
A square wave of the same frequency as that of the original sine wave
A square wave of double the frequency of that of original sine wave
A sine wave of constant amplitude at the frequency of the original sine wave
A sine wave of constant amplitude at double frequency of the original sine wave
⇒ In brushless excitation system of modern alternators, the main exciter is
dc generator
ac generator
either dc or ac generator
induction generator
⇒
Assertion (A): The response of a network to unit impulse can be obtained directly from the network function.
Reason (R): The response of a network for any input can be obtained from impulse response.
Both A and R are true and R is correct explanation of A
Both A and R are true and R is not the correct explanation of A
A is true but R is false
A is false but R is true
⇒ Which of the following characteristics is not true for TTL Logic?
Good speed
Low power dissipation per gate
High cost
None of these
⇒ Amplification of ultrasonic waves is possible in a piezoelectric semiconductor under applied electric field. The basic phenomenon involved is known as
electrostriction
acousto-optic interaction
acousto-electric interaction
stimulated Brillouin scattering
⇒ The radiation resistance of a resonant long wire antenna of half wavelength (λ/2) is given
73 Ω
120 p
377 Ω
7.3 Ω
⇒ In a 4 bit weighted resistor D/A converter, the resistor value corresponding to LSB is 32 kΩ. The resistor value corresponding to MSB will be
32 KΩ
16 KΩ
8 KΩ
4 KΩ
⇒ When temperature is more than ferromagnetic curie temperature, the behaviour of a ferromagnetic material is similar to that of paramagnetic material.
TRUE
FALSE
⇒ A circular waveguide carries TE_{11} mode whose radial electric-field is given
10 cm
3p cm
2p cm
8 cm