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Assertion (A): In ionic dielectrics, P = P_{e} + P_{i}. Reason (R): In ionic crystals, permanent electric dipole moment is zero. | |
A. | Both A and R are true and R is correct explanation of A [Correct 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 [Wrong Answer] |
D. | A is false but R is true [Wrong Answer] |
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Explanation:-
Answer : A Discuss it below : !! OOPS Login [Click here] is required to post your answer/result |
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⇒ Absolute instruments are used in
laboratories
industries
power houses
standard laboratories
⇒ 2's complement of binary number 0101 is
1011
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⇒ Household taperecorders generally use
crystal microphone
moving coil microphone
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Reason (R): The method of superposition is applicable only to linear systems.
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
⇒ Value of Z_{L} for maximum power transfe
R
R + jωL
R - jωL
None of these
⇒ To plot frequency spectrum we draw two graphs viz |F_{n}| versus frequency and φ_{n} versus frequency.
TRUE
FALSE
⇒ The high voltage level of a digital signal in positive logic is
1
0
either 1 or 0
-1
⇒ The minimum charge carried by an ion is
zero
equal to the change of an electron
equal to the change of a pair of electrons
equal to the change of electrons left in the atom
⇒ A typical error rate on satellite circuits is one bit error in
10^{7}
10^{3}
10^{2}
10^{10}
⇒ For a photo conductor with equal electron and hole mobilities and perfect ohmic contacts at the ends, an increase in the intensities of optical illumination results in
change in open circuit voltage
change in short circuit current
a reduction resistance
an increase of resistance
⇒ Performance of a PIN diode switch is represented by
insertion loss when switch is off
insertion loss when switch is on
insertion loss when switch is on and isolation loss when switch is off
insertion loss when switch is off and isolation loss when switch is on
⇒ In laboratory experiment the output from reflex klystron is moderated by square wave because
it is easy to generate a square wave
crystal diode operates in square law region of i-v characteristics
it prevents frequency modulation
detector circuit is less complicated