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Q1. | Which part of radio spectrum is more crowded? |

A. | Lower frequency part [Wrong Answer] |

B. | Higher frequency part [Wrong Answer] |

C. | Both (a) and (b) [Wrong Answer] |

D. | None of these [Correct Answer] |

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Explanation:-
Answer : DDiscuss 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 :**

⇒ A universal RLC bridge uses

Maxwell bridge for measurement of inductance and De Sauty's bridge for measurement of capacitance

Maxwell's bridge for measurement of inductance and modified De Sauty bridge for measurement of capacitance

Maxwell Wien bridge for measurement of inductance and modified De Sauty bridge for measurement of inductance

Maxwell Wien bridge for measurement of inductance and Wien bridge for measurement of capacitance

⇒ In FM, increased depth of modulation increases

modulation

modulation index

bandwidth

all of the above

⇒ In a CB amplifier the maximum efficiency could be

0.99

0.85

0.5

0.25

⇒ Rayleigh current balance is an absolute instrument.

TRUE

FALSE

⇒ Poynting vector is associated with which of the following?

Power flow in electromagnetic

Flux in magnetic field

Charge in electrostatic field

Current in electrostatic field

⇒ Which of the following is NOT associated with a p-n junction?

Junction capacitance

Charge Storage Capacitance

Depletion Capacitance

Channel Length Modulation

⇒ The current flowing through the resistance R in the circuit in the figure has the form 2 cos 4

*t*, where

(0.18 +

*j*0.72)

(0.46 +

*j*1.90)

- (0.18 +

*j*1.90)

(0.23 - 0.35

*j*)

⇒ Consider the following, logic diagr

0000 to 1111

0000 to 1001

0000 to 1010

1001 to 0000

⇒ When a single phase dual converter is operating in circulating current mode

both converters are working as rectifiers simultaneously

one converter is always working as rectifier and the other as inverter

only one converter is working at one time

both converters are either working as rectifiers or as inverters simultaneously

⇒ In drawing phasor diagram

rms values are used

peak values are used

either rms or peak values are used

either rms or peak or averages values are used

⇒ The values of 2

^{5}in octal system is

40

20

400

200

⇒ The rate of change of excess carrier density is proportional to carrier density.

TRUE

FALSE

⇒ To protect an SCR against high

*di*/

*dt*we connect

a capacitance in series with SCR

a capacitance in parallel with SCR

an inductance in parallel with SCR

an inductance in series with SCR

⇒ The atomic weight of an atom is determined by

the number of protons

the number of neutrons

the number of protons and neutrons

the number of electrons and protons

⇒ Which of the following codes provides parity checks?

CCITT-2

EBCDIC

ASCII

Baudot

⇒ In a conductor which of the following relations hold good?

∇ x D = r

∇ . D = r

∇ x D = 0

∇ . D = 0

⇒ Which of the following Boolean Expression correctly represents the relation between P, Q, R and M

_{1M1 = (P OR Q) XOR RM1 = (P AND Q) XOR RM1 = (P NOR Q) XOR RM1 = (P XOR Q) XOR R}

⇒ In a purely resistive circuit the instantaneous power varies from zero to maximum twice in each cycle.

TRUE

FALSE

⇒ R, L and C are in parallel. The circuit is switched on to a constant current source I at

*t*= 0. At

*t*= ∞ the current through inductance is I.

TRUE

FALSE

⇒ Photoelectric emitters in photo tubes are generally made of

alkali metals

metals

semiconductors

metal and semiconductors

⇒ Two currents have the same peak value. Wave 1 is sinusoidal and wave 2 is rectangular. The ratio of their heating effects are

0.0423611111111111

1 : 2

0.0430555555555556

0.000711805555555555

⇒

*n*-channel MOS is

slower than

*p*-channel MOS

faster than

*p*-channel MOS

same as

*p*-channel MOS

none of these

⇒ The sensitivity of human eyes is maximum at

white portion of spectrum

green portion of spectrum

red portion of spectrum

violet portion of spectrum

⇒ Read the following statements about sets

- If A and B are sets then A + B denotes union of sets A and B.
- The union of A and B is that set whose elements are in either A or B or both.
- If A and B are sets, then difference of sets A and B is denoted by A - B.
- A - B in the set obtained by removing elements of A from B.

All

1, 2 and 3 only

2 and 3 only

1 and 4 only

⇒ The feedback control system shown in figure is stable for what values of K and

K < 0, T > - 1

K > 0, T > 0

K > 0, T > - 1

K < 0, T > 0

⇒ The cut in voltage of a diode is nearly equal to

applied forward voltage

applied reverse voltage

barrier potential

none of the above

⇒ A coil with large distributed capacitance has a

high resonant frequency

low resonant frequency

low quality factor

low resistance

⇒ For the two port of figure,

*z*

_{2226/7 Ω6/7 Ω2/3 Ω1 Ω}

⇒ If an admittance Y(

*s*) has a term K

*s*, the realization would give

an inductance of value K

a resistance of value K

a capacitance of value K

either (a) or(c)

⇒ Generally a servomotor operates at

high torque and high speed

low torque and low speed

low torque and high speed

high torque and low speed