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Q1. | The figure shown below is designed to act as a constant current source across the load resistor. The β of transistor is 50. What is the value of load curr |

A. | 1.96 mA [Correct Answer] |

B. | 2 mA [Wrong Answer] |

C. | 2.04 mA [Wrong Answer] |

D. | None [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 :**

⇒ The velocity factor of a transmission line

mainly depends on the skin effect

is always higher for a solid dielectric than for air

mainly depends on the dielectric constant of the material used

increases the velocity along the transmission line

⇒ Which of the following introduces mode partition noise?

Coaxial line

Waveguide

Fibre transmission line

Both coaxial line and waveguide

⇒

**Assertion (A):** Gray code is used in shaft position encoding.

**Reason (R):** In gray code only a single bit change occurs when going from one code to another.

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

⇒ Absolute permeability (μ) is given by __________ henry/metre

4p x 10

^{-12}

4p x 10

^{-7}

8.854 x 10

^{-12}

8.854 x 10

^{-7}

⇒ Which part of radio spectrum is more crowded?

Lower frequency part

Higher frequency part

Both (a) and (b)

None of these

⇒ Which characteristic of a memory chip is called ac characteristics?

Power consumption

Bus loading

Timing characteristic

All of the above

⇒ Noise can be measured by

D.C. voltmeter

A.C. voltmeter

either of the above

none of the above

⇒ Zener breakdown occurs

due to rapture of covalent band

mostly in germanium junctions

in lightly doped junctions

due to thermally generated minority carriers

⇒ Consider the following statements:

- If any root of characteristic equation has a positive real part the impulse response is unbounded and system is unstable.
- If all the roots of a characteristic equation have negative real parts, the impulse response decays to zero.
- If one or more non-repeated roots of characteristic equation are on
*j*ω axis impulse response is bounded but the system is unstable.

1, 2 and 3

1 and 2 only

1 and 3 only

2 and 3 only

⇒ In figure, V

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⇒ Turn on time of a transistor switch is equal to sum of (where

*t*

_{r}is rise time,

*t*

_{d}is delay time)

*t*

_{s}-

*t*

_{r}

*t*

_{s}-

*t*

_{f}

*t*

_{d}+

*t*

_{r}

2

*t*

_{r}

⇒ It is possible to copy a file in the same directory.

TRUE

FALSE

⇒ Two voltmeters 0-250 V each having resistances of 5 kΩ and 10 kΩ respectively and are connected in series. To ensure that neither of them goes beyond scale the total voltage which can be applied should be less than

500 V

400 V

375 V

250 V

⇒ Specific resistance of silver is about

0.16 x 10

^{-8}Ω-m

1.64 x 10

^{-8}Ω-m

16 x 10

^{-8}Ω-m

164 x 10

^{-8}Ω-m

⇒ Some sources of TV programs are

- TV camera
- Telecine
- VTR
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1, 2, 3 and 4

1, 2, 3

1 and 3

1 2 and 4

⇒ In microwave circuits, a mode transducer is used to

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change direction of wave transmission

change polarization of wave transmission

change mode, direction or polarization wave transmission

⇒ For 0 < M < 1, the centres of M circle lie to the right of origin.

TRUE

FALSE

⇒ For a BJT a = 0.98, then β =

0.02

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⇒ In the equivalent circuit of a moving coil cone type loudspeaker, the mass of the moving system is represented by

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a capacitance

an inductance

a conductance

⇒ Binary 1000 multiplied by binary 1000 gives

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100000

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⇒ For real and odd signals, the Fourier series coefficient

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_{k}purely imaginary and even

purely real and even

purely imaginary and odd

purely real and odd

⇒ Divergence of curl A is

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⇒ What will be minimum conversion rate in 6 bit dual slope A/D converter uses a reference of -6v and a 1 MHz clock. It uses a fixed count of 40 (101000).

9000

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1000

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⇒ The dc output voltage from a power supply

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⇒ When satellite radio beam is aimed towards earth, it illuminates on the earth for an oval shaped area called

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⇒ The current flowing through a pure capacitor is called displacement current.

TRUE

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⇒ In the following astable multivibrator circuit, which properties of

*v*

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⇒ In a series R-L circuit when excited by a 1 volt battery the current is 1 -

*e*

^{-t}. If it is excited by a source 2 sin

*t*, the current will be

2 sin (

*t*- 45°) +

*e*

^{-t}

2 sin (

*t*+ 45°) +

*e*

^{-t}

sin (

*t*- 45°) +

*e*

^{-t}

sin (

*t*+ 45°) +

*e*

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⇒ 39.12

_{10}= __________

_{10}

10111.0001111

100011.0001111

100001.0001111

1111.0001111

⇒

Match the following:

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

A. | Darlington amplifier | 1. | A circuit using pnp and npn transistors |

B. | CB amplifier | 2. | A CS amplifier driving a CG amplifier |

C. | Cascade amplifier | 3. | A circuit with over-all voltage gain close to 1 and very large input impedance |

D. | Complementary symmetry amplifier | 4. | A circuit with low input impedance |

A-1, B-2, C-3, D-4

A-2, B-1, C-3, D-4

A-3, B-4, C-2, D-1

A-4, B-3, C-2, D-1