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Some features of RF stage in good radio receivers is
| |
A. | 1, 2 and 3 only [Wrong Answer] |
B. | 1, 2 and 4 only [Wrong Answer] |
C. | 2, 3, 4 only [Wrong Answer] |
D. | 1, 2, 3, 4 [Correct Answer] |
View Answer
Explanation:-
Answer : D Discuss it below : !! OOPS Login [Click here] is required to post your answer/result |
Also Read Similar Questions Below :
⇒ If each frequency component of f(t) is shifted by p/2, the resulting signal is
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Inverse Hilbert transform of f(t)
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⇒
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lower cut-off frequency
higher cut-off frequency
both lower as well as higher cut-off frequency
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all heads are withdrawn
all amplifiers are shut off
tape is not pressed against capstan
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⇒ A single phase full bridge inverter for R-L loads needs
4 thyristors
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4 thyristors and 2 diodes
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⇒ Of the four INSAT-I satellites planned by India so for, only __________ has proved to be successful.
INSAT-IA
INSAT-IB
INSAT-IC
INSAT-ID
⇒ Laplacian of a scalar function V is
gradient of V
gradient of the gradient of V
divergence of V
divergence of the gradient of V
⇒ A semi-conductor device that behaves like two SCRs is
UJT
MOSFET
JFET
TRIAC
⇒ An ac bridge uses galvanometer as detector.
TRUE
FALSE
⇒ When electronic emission occurs due to bombardment of high velocity electrons on a metal surface, it is called secondary emission.
TRUE
FALSE
⇒ A moving iron instrument gives correct reading when used at
low frequencies
high frequencies
only one frequency
all frequencies upto a certain value
⇒ The counter in the given figur
Mod 3
Mod 6
Mod 8
Mod 7
⇒ An RLC series circuit has a variable inductance. The value of L for resonance conditions at fundamental frequency is 0.18 H. For resonance conditions at third harmonic frequency the value of inductance is
0.54 H
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⇒ Assuming accumulator contain A 64 and the carry is set (1). What will register A and (CY) contain after ACI 0 A4 H?
4 AH, 0
4 AH, 1
4 BH, 0
4 BH, 1
⇒ If the Q of a single stage single tuned amplifier is doubled, the bandwidth will
remain the same
become half
become double
become four times
⇒ Decimal 18.29 when converted int 10's complement will become
81.7707
81.7
81.777
81.077
⇒ The number of gates in an SCR is
1
3
4
6
⇒ Which of the following frequencies has the greatest period?
20 Hz
200 Hz
20 kHz
200 kHz
⇒ Program counter in a digital computer
counts the number of program run in the machine
counts the number of times a subroutine is called
counts the number of times the loops are executed
points the memory address of the current or the next instruction to be executed
⇒ In 8085, usually the vector location and the next two memory location contain a JMP instruction. This allows the programs to branch to
a longer subroutine
a shorter subroutine
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⇒
Assertion (A): Field emission is substantially independent of temperature.
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Both A and R are true and R is correct explanation of A
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⇒ In setting up 'for' loops in Pascal, the initial and final values of index may be
integer constants
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integer constants or real constants
⇒ Virus is a
computer hardware problem
an operating system
a computer program
a computer language
⇒ A parallel RLC network has R = 4Ω, L = 4H, C = 0.25F. Then at resonance Q =
1
10
20
40
⇒ For BJT, under saturation condition
I_{C} = βI_{B}
I_{C} > bI_{B}
I_{C} is independent of all other parameters
I_{C} < βI_{B}
⇒ A lossless transmission line is 50 cm long and operates at a frequency of 500 MHz. Inductance and capacitances present in a line are 0.5 μH/m and 200 pF/m. Phase constant and phase velocity are respectively.
5p, 2p x 10^{8} m/sec
5p, 10^{8} m/sec
31.4, 10^{8} m/sec
31.4, 2p x 10^{8} m/sec