Question is ⇒ In case of surface waves the field strength at a point is directly proportional to, Options are ⇒ (A) antenna height, (B) wave frequency, (C) current of the antenna, (D) distance of the point from the antenna, (E) , Leave your comments or Download question paper.

Question is ⇒ In case of surface waves the field strength at a point is directly proportional to, Options are ⇒ (A) antenna height, (B) wave frequency, (C) current of the antenna, (D) distance of the point from the antenna, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	In case of surface waves the field strength at a point is directly proportional to
A.	antenna height [Wrong Answer]
B.	wave frequency [Wrong Answer]
C.	current of the antenna [Wrong Answer]
D.	distance of the point from the antenna [Correct Answer]
View Answer 1 -1 Explanation:- Answer : D 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 :

⇒ The bandwidth of FM for Commercial Purpose is
88 - 108 MHz
85 - 110 MHz
90 - 110 MHz
infinite Range

⇒ In LED the radiation is in
visible region
infrared region
both (a) and (b)
neither (a) nor (b)

⇒ Which one the following is an advantage of AM over FM?
FM has wide bandwidth
FM has better
FM is more immune to noise
Probability of noise spike generation is less in AM

⇒ If for a silicon n-p-n transistor, the base to emitter voltage (V_BE) is 0.7 V and the collector to base voltage V_CB is 0.2 Volt, then the transistor is operating in the
normal active mode
saturation mode
inverse active mode
cut off mode

⇒ The purpose of using negative feedback in a op-amps is to
stabilize overall gain
increase output
stabilize overall gain and increase output
increase output and decrease input

⇒

Assertion (A): From the slope of the line in Figure, we can find permanent dipole moment of the molecules.

Reason (R): Total polarization of a polyatomic gas is given by P = N(a_e + a_i + μ²_p / 3kT
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 but R is false
A is false but R is true

⇒ In series as well as parallel resonant circuits, increasing the value of resistance would lead to
decrease in bandwidth of both the circuits
increase in bandwidth of both the circuits
decrease in bandwidth in series circuit and increase in parallel circuit
increase in bandwidth in series circuit and decrease in parallel circuit

⇒ In the circuit of figure β = 100 and quiescent value of base current is 20 μA. The quiescent value of colle
0.2 μA
2 μA
2 mA
20 mA

⇒ (9)₁₁ x (9)₁₃ x(9)₁₅ = (?)₁₆
933
2D9
339
9AB

⇒ Household taperecorders generally use
crystal microphone
moving coil microphone
condenser microphone
cardioid microphone

⇒ DeMorgan's first theorem is =
A . A = 0
A = A
A + B = A . B
AB = A + B

⇒ Holes act like
positive charges
neutral atoms
negative charges
crystals

⇒ Maximum rectification efficiency for a half wave rectifier is
1
0.88
0.5
0.406

⇒ Which of the following circuits can operate class AB for audio power output?
Emitter follower
Push pull
Cascade
Darlington pair

⇒ Which of the following is not treated as hexadecimal constant by assembler in 8085?
64 H
5 AFH
AFH
OCFH

⇒ If PRIN = 200.0 and BINT = 0.0525 the result of expression INCOME = PRIN * (1 + BINT) will be
210
210.5
210.5
210.5

⇒ The numerical value of directivity of current element of half-wave dipole is 1.76 and 2.15 dB respectively. The directive gain of half-wave dipole over current element will be
3.91 dB
1.95 dB
0.39 dB
0.195 dB

⇒ The pole zero plot of the given figure is
non-minimum phase function
minimum phase function
all pass function
either (b) or (c)

⇒ For a base current of 10 μA, what is the value of collector current in common emitter if β_dc = 100
10 μA
100 μA
1 mA
10 mA

⇒ Inverters find applications in
HVDC transmission
UPS
variable speed ac drives
all of the above

⇒ The capacitors C₁, C₃, C₄ and C₅ have a capacitance of 4 μF each and the capacitor C₂ has a capacitance of 10 μF. The effective capacitance (in μF) between the points X and Y will
4 μF
6 μF
3 μF
8 μF

⇒ Given two numbers A and B in sign magnitude representation in an eight bit format A = 00011110 and B = 10011100 then A ⊕ B gives
10000010
11111
10011101
11100001

⇒ Which of the following is best excited from a waveguide?
Discone
Helical
Biconical
Horn

⇒ For the time domain response shown in figure the
lies in left half plane
lies in right half plane
lies at origin
may be complex or imaginary

⇒ Effective address is calculated by adding or subtracting displacement value to
immediate address
Relative address
absolute address
base address

⇒ The range of life time carriers (electrons and holes) is
1 μs to 100 μs
1 nano sec to 1 μs
1 nano sec to hundreds of μs
none of the above

⇒ Consider the following statements about advantages of phase discriminator over slope detector

Which of the above are true?
1, 2, 3, 4
2, 3, 4
1, 2, 3
1, 3, 4

⇒ Audio systems use transverse recording.
TRUE
FALSE

⇒ In the circuit shown in figure the current I of sinusoidal sourc
25 A
0.166666666666667
20 A
Not determinable from given data

⇒ The scale of hot wire instrument is linear.
TRUE
FALSE