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Q1. | Foster Seeley discriminator uses a |

A. | single tuned circuit [Correct Answer] |

B. | double tuned circuit with primary and secondary tuned to the same frequency [Wrong Answer] |

C. | double tuned circuit with primary and secondary tuned to the different frequency [Wrong Answer] |

D. | none of the above [Wrong Answer] |

View Answer
Explanation:-
Answer : ADiscuss it below :!! OOPS Login [Click here] is required to post your answer/resultHelp other students, write article, leave your comments |

**Also Read Similar Questions Below :**

⇒ Ferrities are particularly suited for high frequency applications because of their

low distortion

low eddy current loss

high conductivity

high mobility

⇒ The current through common emitter resistor of a differential amplifier is called

differential current

emitter current

ground current

tail current

⇒ Energy = voltage x charge.

TRUE

FALSE

⇒ In a programmable counter

the starting number for counting can be programmed

the modulus can be programmed

both the starting number and modulus can be programmed

either the starting number or modulus can be programmed

⇒ The ASCII code is for information interchange by a binary code for

alphabet only

number only

alpha-numeric and other common symbols

none of these

⇒

**Assertion (A):** Thevenin's theorem and Norton's theorem are dual of each other.

**Reason (R):** Voltage source can be converted into current source and vice versa.

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

⇒ A vibration galvanometer is a

moving coil instrument

moving iron instrument

dynamometer instrument

induction instrument

⇒ In oscillators class C operation is preferred because

is most efficient

has frequency stability

gives larger output

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⇒ A single-sideband (SSB) signal contains 3 kW. The power content of the carrier is __________ kW.

2

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3

0

⇒ Dielectric constant of transformer oil is about

1

4

10

20

⇒ In integral cycle control of ac regulators, the period of integral cycle control,

*i*.

*e*., (

*m*+

*n*) T should be

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more than the mechanical or thermal time constant of the system

more or less than the mechanical or thermal time constant

very high

⇒ The number of select lines in

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4

8

16

⇒ A linear time-invariant, causal continuous time system has a rational transfer function with simple poles at

*s*= - 2 and

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*s*= - 1. A unit step

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[exp (- 2

*t*) + exp (-4

*t*)]

*u*(

*t*)

[-4 exp (- 2

*t*) + 12 exp (-4

*t*) - exp (-

*t*)]

*u*(

*t*)

[-4 exp (- 2

*t*) + 12 exp (-4

*t*)]

*u*(

*t*)

[-0.5 exp (- 2

*t*) + 1.5 exp (-4

*t*)]

*u*(

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⇒ The force in a magnetic field is given by F =

*qv*B

F and

*q*are perpendicular and

*v*and B are perpendicular

F and

*q*only are perpendicular to each other

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All the four components are perpendicular to each other

⇒ The primary reason for the widespread use of Si in semiconductor device technology is

abundance of Si on the surface of earth

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⇒ An induction wattmeter can be used for ac only.

TRUE

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⇒ Oscillations are obtained from a reflex klystron only for combinations of anode voltage and repeller voltage that give a favourable transit time.

TRUE

FALSE

⇒ Consider the following stateme

1, 2 and 3

1 and 2 only

2, 3 and 4

2, 3 and 4

⇒ The electrical energy required to heat a bucket of water to a certain temperature is 2 kWh. If heat losses, are 25%, the energy input is

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3.5 kWh

⇒ The symbol ! in Java means

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⇒ A source is delivering maximum power to a resistance through a network. The ratio of power delivered to the source power,

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may be 0.5 or less

may be 0.5 or more

⇒ A certain transistor has a

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⇒ Measurement of Hall coefficient enables the determination of

transportation factor decreases and a increases

transportation factor increases and a increases

transportation factor increases and a decreases

transportation factor decreases and a decreases

⇒ 24 telephone channels, each band limited to 3.4 kHz are to be time division multiplexed using PCM. If sampling frequency is 10 kHz and number of quantization levels is 128, the required bandwidth of PCM is

1.68 MHz

240 kHz

81.6 kHz

3.072 MHz

⇒ A buffer amplifier should have

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⇒ A gate in which shift register is connected as shown in the figure below. How many clock pulse (after reset to '0') the contents of the shift register are '000' ag

3

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⇒ UHF and microwaves in the frequency range 300 MHz to 30 GHz can be best transmitted using __________ propagation

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⇒ A RADAR can be used to

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