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Q1. | The reverse saturation current in a semiconductor diode consists of |

A. | avalanche current [Wrong Answer] |

B. | zener current [Wrong Answer] |

C. | minority carrier current [Wrong Answer] |

D. | minority carrier current and surface leakage current [Correct Answer] |

View Answer
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 :**

⇒ The 8085 instruction

`'PUSH PSW'`

belongs to the groupdata transfer

arithmetic

logic

none of the above

⇒

Match the following:

List I (Functional components) | List II (Device) | ||
---|---|---|---|

A. | Error detector | 1. | Three phase FHP Induction motor |

B. | Servo motor | 2. | Synchro transmitter and control transformer |

C. | Amplifier | 3. | Tacho generator |

D. | Feed back | 4. | Armature controlled FHP dc motor |

5. | Amplidyne |

A-2, B-4, C-1, D-5

A-4, B-2, C-5, D-3

A-2, B-4, C-5, D-3

A-1, B-2, C-3, D-5

⇒

**Assertion (A):** Charge is dual of flux.

**Reason (R):** Short circuit is dual of open circuit.

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

⇒ The boolean expression for shaded area in the given figur

AB + AC

ABC + ABC

ABC + ABC

None of these

⇒ In figure, the current supplied by battery at

*t*= 0.5

*s1.1 A*

1.9 A

0

1.632 A

1.9 A

0

1.632 A

⇒ In the circuit shown in the given figure, R

2.75 Ω

7.5 Ω

25 Ω

27 Ω

⇒ For a 16 bit computer the range of integer constants in C is

-32768 to + 32767

-32767 to + 32768

-65536 to + 65535

-65535 to + 65536

⇒ In thermal ohm's law, temperature and power loss are analogous to

V and I respectively of ohm's law

I and V respectively of ohm's law

R and V respectively of ohm's law

I and R respectively of ohm's law

⇒ In terms of ABCD parameters, the image parameter Z

AC/BD

BD/AC

AB/CD

AD/BC

⇒ In the graph shown in the figure, for the tree with branches

⇒ In a backward wave oscillator the efficiency

is much higher than in TWT

is much lower than in TWT

is almost the same as in TWT

either (a) or (b)

⇒

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

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

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

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

⇒ If the repeller voltage in a klystron oscillator is increased the transit time of electron

will be increased

will be decreased

will remain the same

either (a) or (b)

⇒ How can the bandwidth of a control system be increased?

By the use of phase lead network

By the use of phase lag network

By the use of both phase-lag and phase-lead network

By the use of cascaded amplifiers in the system

⇒ The applications of shift registers are

1, 2, 3

2, 3, 4

1, 2, 3, 4

1, 2, 4

⇒ Consider the following statements: The radar pulse must be flat topped to

1, 2, 3, 4

1, 2, 3

1, 2

1, 3, 4

⇒ Some features of RF stage in good radio receivers is

1, 2 and 3 only

1, 2 and 4 only

2, 3, 4 only

1, 2, 3, 4

⇒ When the channel is noisy, producing a conditional probability of error

1 and 1

1 and 0.5

0.5 and 1

0 and 1

⇒ The number of logic or arithmetic operations with

4

8

16

32

⇒ The circuit of the given figure perf

OR function

AND function

exclusive OR function

exclusive NOR function

⇒

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

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

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

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

⇒ An antenna has a gain of 44 dB. Assuming that the main beam of the antenna is circular in cross-section the beamwidth will be

0.4456°

1.4456°

2.4456°

3.4456°

⇒ In a rectifier only a portion of input power is converted into DC power. The rest is AC power.

TRUE

FALSE

⇒ The hexadecimal number 5 F is equal to binary number

1010011

1011001

1010101

1011111

⇒ In the given figure

A

B

A + B + C

ABC

⇒ A pole zero plot of a filter is shown in figure. I

low pass filter

high pass filter

band pass filter

all pass filter

⇒ Which of the following statement is false?

A stationary process is always a ergodic process

A ergodic process is always a stationary random process

It is possible to have a stationary random

None of the above

⇒

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

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

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

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

⇒ Which component is allowed to pass through it by a choke filter?

Dc

Ac

Both dc and ac

Only high frequency ac

⇒ The circuit in figure is switched on at

⇒ In the circuit shown in the given figure, R

_{L}will absorb maximum power when its valu2.75 Ω

7.5 Ω

25 Ω

27 Ω

⇒ For a 16 bit computer the range of integer constants in C is

-32768 to + 32767

-32767 to + 32768

-65536 to + 65535

-65535 to + 65536

⇒ In thermal ohm's law, temperature and power loss are analogous to

V and I respectively of ohm's law

I and V respectively of ohm's law

R and V respectively of ohm's law

I and R respectively of ohm's law

⇒ In terms of ABCD parameters, the image parameter Z

_{11}is equal toAC/BD

BD/AC

AB/CD

AD/BC

⇒ In the graph shown in the figure, for the tree with branches

*b*,*d*and*f*the fundamental loops would inclu*abf, def, bdea**bdc, def, fba**abde, def, cdb**cea, bdea, abbf*⇒ In a backward wave oscillator the efficiency

is much higher than in TWT

is much lower than in TWT

is almost the same as in TWT

either (a) or (b)

⇒

Match the following:

List I (Operation in Basic) | List II (Priority) | ||
---|---|---|---|

A. | Exponentiation | 1. | 1 |

B. | Multiplication and division | 2. | 2 |

C. | Addition and subtraction | 3. | 3 |

D. | Expression within parenthesis | 4. | 4 |

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

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

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

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

⇒ If the repeller voltage in a klystron oscillator is increased the transit time of electron

will be increased

will be decreased

will remain the same

either (a) or (b)

⇒ How can the bandwidth of a control system be increased?

By the use of phase lead network

By the use of phase lag network

By the use of both phase-lag and phase-lead network

By the use of cascaded amplifiers in the system

⇒ The applications of shift registers are

- Time delay
- Ring counter
- Serial to parallel data conversion
- Serial to serial data conversion

1, 2, 3

2, 3, 4

1, 2, 3, 4

1, 2, 4

⇒ Consider the following statements: The radar pulse must be flat topped to

- allow accurate range measurement
- allow good minimum range
- prevent frequency changes in magnetron
- make the returned echoes easier to distinguish from noise.

1, 2, 3, 4

1, 2, 3

1, 2

1, 3, 4

⇒ Some features of RF stage in good radio receivers is

- It increases sensitivity by providing amplification to RF signal
- It eliminates image frequency interference
- It increases selectivity
- It reduces noise level

1, 2 and 3 only

1, 2 and 4 only

2, 3, 4 only

1, 2, 3, 4

⇒ When the channel is noisy, producing a conditional probability of error

*p*= 0.5; the channel capacity and entropy function would be, respectively,1 and 1

1 and 0.5

0.5 and 1

0 and 1

⇒ The number of logic or arithmetic operations with

`ALU 1C 74181`

can carry out is4

8

16

32

⇒ The circuit of the given figure perf

OR function

AND function

exclusive OR function

exclusive NOR function

⇒

Match the following:

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

A. | CLP | 1. | Measure of μP clock speed |

B. | SHELL | 2. | Double sided double density |

C. | DSDD | 3. | Allows you to specify file as command processor |

D. | Megahertz | 4. | Microcode stored in ROM |

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

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

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

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

⇒ An antenna has a gain of 44 dB. Assuming that the main beam of the antenna is circular in cross-section the beamwidth will be

0.4456°

1.4456°

2.4456°

3.4456°

⇒ In a rectifier only a portion of input power is converted into DC power. The rest is AC power.

TRUE

FALSE

⇒ The hexadecimal number 5 F is equal to binary number

1010011

1011001

1010101

1011111

⇒ In the given figure

A

B

A + B + C

ABC

⇒ A pole zero plot of a filter is shown in figure. I

low pass filter

high pass filter

band pass filter

all pass filter

⇒ Which of the following statement is false?

A stationary process is always a ergodic process

A ergodic process is always a stationary random process

It is possible to have a stationary random

None of the above

⇒

Match the following:

List I (Characteristic equation) | List II (Degree of damping) | ||
---|---|---|---|

A. | s^{2} + 15s + 56.25 | 1. | Undamped |

B. | s^{2} + 5s + 6 | 2. | Underdamped |

C. | s^{2} + 20.25 | 3. | Critically damped |

D. | s^{2} + 4.55s + 42.25 | 4. | Overdamped |

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

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

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

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

⇒ Which component is allowed to pass through it by a choke filter?

Dc

Ac

Both dc and ac

Only high frequency ac

⇒ The circuit in figure is switched on at

*t*= 0. At any time*t*,*i*(*t3 + 3*

6 - 3

3 - 3

6 - 6*e*^{-1}6 - 3

*e*^{-1}3 - 3

*e*^{-t}6 - 6

*e*^{-1}