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Q1. | Which of the following is not an integer constant? |

A. | 2.3 [Correct Answer] |

B. | 156231 [Wrong Answer] |

C. | 10 [Wrong Answer] |

D. | -256 [Wrong Answer] |

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Explanation:-
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**Also Read Similar Questions Below :**

⇒ In a metal the probability of a state 0.1 eV below Fermi level being occupied

is more than the probability of state 0.1 eV above Fermi level being occupied

is the same as the probability of state 0.1 eV above Fermi level being occupied

is less than the probability of state 0.1 eV above Fermi level being occupied

may be equal to or more or less than the probability of state 0.1 eV above Fermi level being occupied

⇒ For a transistor if a

_{dc}= 0.98 and emitter current

*I*

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*mA*, then collector current will be

0.44 mA

0.88 mA

1.96 mA

3.32 mA

⇒

Match the following:

List I | List II | ||
---|---|---|---|

A. | Fourier transform of a Gaussian function | 1. | Gaussian function |

B. | Convolution of a rectangular pulse with itself | 2. | Rectangular pulse |

C. | Current through inductor for step input voltage | 3. | Triangular pulse |

4. | Ramp function | ||

5. | Zero |

A-1, B-2, C-3

A-2, B-4, C-5

A-1, B-3, C-4

A-2, B-3, C-5

⇒ If E

_{b}, the energy per bit of a binary digital signal is 10

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26 dB

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⇒ When an ac circuit has sources of different frequencies, the only method of analysis is superposition theorem.

TRUE

FALSE

⇒ If Z is the number of zeros of 1 + G(

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⇒ In the analogy between electric and magnetic circuits, flux is analogous to

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⇒ A capacitor can be represented by a capacitance C in parallel with a resistance R. For a good capacitor, the resistance R should be

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⇒ An enhancement mode MOSFET is on when the gate voltage is

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more threshold value

⇒ A voltage wave is

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35.36 V

31.85 V

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⇒ In a series RLC circuit, p-f is leading if X

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⇒ At a very low temperature, a semiconductor

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may become a conductor or an insulator

will remain a semiconductor becomes a conductor or an insulator

⇒ A frequency doubler has an FM signal input at 13 MHz with a deviation of 5 kHz. The output frequency of the carrier will be

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⇒ The zener diode in the rectangular circuit shown in the figure has a zener voltage of 5.8 volts and a zener knee current of 0.5 mA. The maximum load current drawn from this circuit ensuring proper functioning over the input voltage range between 20 and 30 volts

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⇒ A TTL circuit with totem pole output has

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20 mV

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⇒ A 1 MHz sinusoidal carrier is amplitude modulated by a symmetrical square wave of period 100 μ sec. Which of the following frequencies will not be in the modulated signal?

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1010 kHz

1020 kHz

1030 kHz

⇒

**Assertion (A):** A radiation pyrometer is very suitable for high temperature measurement.

**Reason (R):** When temperature is high, a physical contact between hot body and thermometer is not desirable.

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 R is false

A is false R is true

⇒ Wagner earthing device eliminates

all stray capacitance in the circuit

stray capacitances between components

stray capacitance between detector terminal and ground

mutual coupling between components

⇒ Which of the following plot can be used to show the input volt-ampere characteristics of a common-emitter configuration?

V

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_{CE}

V

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*i*

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V

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⇒ Overall efficiency of class B amplifier is

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⇒ If E

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E

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⇒ Form factor for a sine wave is

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⇒ Dual slope ADC uses an op amp comparator.

TRUE

FALSE

⇒ The power in the signal

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40

41

42

82

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⇒ A dc series motor is coupled to a load whose torque is proportional to speed. It is fed by a single phase ac supply through a full converter. When speed is 500 rpm, firing angle is 45°. It is desired to raise the speed. It will be necessary to

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increase the firing angle

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leading, Lagging

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independent of frequency

same

⇒ Resistivity of semiconductors is around 100 Ω-m.

TRUE

FALSE