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As the frequency increases, the absorption of ground wave by earth's surface | |
A. | decreases [Wrong Answer] |
B. | increases [Correct Answer] |
C. | remains the same [Wrong Answer] |
D. | either (a) or (c) [Wrong Answer] |
View Answer
Explanation:-
Answer : B Discuss it below : !! OOPS Login [Click here] is required to post your answer/result |
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⇒ If P = 250 W and p.f. = 0.707 lagging, Q =
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⇒ The transfer function of a discrete time LTI system is give
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⇒ If a sequence is causal then ROC is (where a is any number)
|z| > a
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Entire Plane
⇒ As a compared to a CB amplifier, a CE amplifier has
lower current amplification
higher current amplification
lower input resistance
higher input resistance
⇒ The inductance of a single layer solenoid of 10 turns is 5 μH. Which one of the following is the correct value of inductance when the number of turns is 20 and the length is doubled.
10 μH
20 μH
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⇒ In a moving iron voltmeter the coil has a resistance of 20 Ω and an inductance of 0.3 H. The swamping resistance in 2000 Ω. To ensure correct reading with dc as well as 50 Hz ac, the value of capacitor to be connected in parallel with swamping resistance should be
0.0125 μF
0.0311 μF
0.0521 μF
0.0622 μF
⇒ Multiphase choppers are used in
low power circuits
high power circuit
both low and high power circuits
medium power circuits
⇒ The input gate current of a FET is
a few amperes
a few milli amperes
a few micro amperes
negligible
⇒ In figure the open circuit em
15 V
1.45 V
1.475 V
1.485 V
⇒ In the figure, the
emits light when both S_{1} and S_{2} are closed
emits light when both S_{1} and S_{2} are open
emits light when only S_{1} and S_{2} is closed
does not Emit light, irrespective of the switched positions
⇒
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Reason (R): Asymptotes show the behaviour of root loci for |s| >> 1
Both A and R are correct and R is correct explanation of A
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proportional gain K_{p} is adjustable but integral time T_{i} is constant
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both proportional gain K_{p} and integral time T_{i} are constant