Question is ⇒ Consider the following statements about Yagi Uda antenna <ol style="list-style-type: decimal; padding-bottom:10px;"><li style="padding-top:10px;">It is unidirectional</li><li style="padding-top:10px;">Its gain is about 7 dB</li><li style="padding-top:10px;">It is used at VLF</li><li style="padding-top:10px;">The optimum separation is 0.11</li></ol> Which of the above are correct?, Options are ⇒ (A) 1 and 2 only, (B) 1, 2, 4 only, (C) 1, 2, 3, 4, (D) 1 and 4 only, (E) , Leave your comments or Download question paper.

Question is ⇒ Consider the following statements about Yagi Uda antenna <ol style="list-style-type: decimal; padding-bottom:10px;"><li style="padding-top:10px;">It is unidirectional</li><li style="padding-top:10px;">Its gain is about 7 dB</li><li style="padding-top:10px;">It is used at VLF</li><li style="padding-top:10px;">The optimum separation is 0.11</li></ol> Which of the above are correct?, Options are ⇒ (A) 1 and 2 only, (B) 1, 2, 4 only, (C) 1, 2, 3, 4, (D) 1 and 4 only, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	Consider the following statements about Yagi Uda antenna It is unidirectional Its gain is about 7 dB It is used at VLF The optimum separation is 0.11 Which of the above are correct?
A.	1 and 2 only [Wrong Answer]
B.	1, 2, 4 only [Correct Answer]
C.	1, 2, 3, 4 [Wrong Answer]
D.	1 and 4 only [Wrong Answer]
View Answer 1 -1 Explanation:- Answer : B Discuss it below : !! OOPS Login [Click here] is required to post your answer/result Help other students, write article, leave your comments

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⇒

Assertion (A): FM requires more bandwidth than AM

Reason (R): Wide band FM is used for broadcast transmissions.

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
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⇒ An alternating current or voltage is that which
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changes in direction only
both (a) and (b)
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4.6 kHz
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⇒ For the network shown below, determine f_Hi and f_HO, if, r₀ = ∞, C_be = 36 Pf, C_bc = 4 Pf, C_ce = 1 Pf, C_wo = 8 Pf, C_wi = 6 Pf<
738.24 KHz, 8.6 MHz
781.2 KHz, 10.6 MHz
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undamped natural frequency
damping ratio
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Pulse code modulation
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⇒ In p type semiconductor, the hole concentration
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⇒ Klystron amplifier is not used to amplifier very weak microwave signals due to
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⇒ A dynamometer wattmeter can be used for
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10^-3 amp
10^-6 amp
10^-9 amp
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⇒ In figure, capacitor is uncharged. The switch is closed at t = 0 at t = 0⁺ di/dt100 A/s
-100 A/s
1000 A/s
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a is real and +ve
a is real and -ve
|a| > 1
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0
0.208333333333333
less than 5A
infinity

⇒
Assertion (A): TTL uses multiple emitter transistor.
Reason (R): Multiple emitter transistors with about 60 emitters have been developed.

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 true, R is false
A is false, R is true

⇒ In a P-N-P transistor, with normal bias, the emitter junction
is always reverse biased
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⇒ A number given in binary as 0101.01 is to be scaled up 4 times. The scaled up binary is
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⇒ Magnetic deflection is inversely proportional to
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⇒ The secondary constants of a line are
Z₀
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Z₀, γ and wave velocity
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⇒ Carbon resistances are used in very high values.
TRUE
FALSE

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widens
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⇒ In body centred cubic structure, comers and centre of the cube are occupied by identical atoms.
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⇒
Match the following:
List I List II
A. RC coupled amplifier 1. Very low drift
B. Tuned amplifier 2. Flat frequency response from zero frequency onwards
C. Chopper stabilized amplifier 3. Flat frequency response with upper and lower cut off frequency
D. DC amplifier 4. Peak in gain frequency response

A-4, B-3, C-1, D-2
A-3, B-4, C-2, D-1
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⇒ An AND gate has four inputs. One of the inputs is low and other inputs are high. The output
is low
is high
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⇒ For the transport lag G(jω) = e^-jωT, the polar plot is
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	List I		List II
A.	RC coupled amplifier	1.	Very low drift
B.	Tuned amplifier	2.	Flat frequency response from zero frequency onwards
C.	Chopper stabilized amplifier	3.	Flat frequency response with upper and lower cut off frequency
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