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Q1. | Which of these devices can conduct in both directions? |

A. | SCR [Wrong Answer] |

B. | SUS [Wrong Answer] |

C. | SBS [Correct Answer] |

D. | UJT [Wrong Answer] |

View Answer
Explanation:-
Answer : CDiscuss 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 voltage gain of a CE amplifier connected in collector to base configuration is 50. Collector to base resistor R

_{F}= 1 kΩ, R

_{C}= 4Ω, the O/P resistance R

_{0}=?

800 Ω

813 Ω

817 Ω

819 Ω

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

*s*) H(

*s*) in the right half

*s*plane. N is the number of clockwise encircle elements of (-1 +

*jo*) point. P is the number of poles of G(

*s*) H(

*s*) in right half

*s*plane. The Nyquist stability criterion can be expressed as

Z = N + P

Z = P/N

Z = N - P

Z = PN

⇒

**Assertion (A):** The response of a network to unit impulse can be obtained directly from the network function.

**Reason (R):** The response of a network for any input can be obtained from impulse response.

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

⇒ Giga watt is equal to

10

^{12}W

10

^{9}W

10

^{6}W

10

^{3}W

⇒ For dielectrics in alternating field, polarizability a

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ω = 0

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ω = 0 and ω → ∞

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⇒ The hexadecimal number 5 F is equal to binary number

1010011

1011001

1010101

1011111

⇒ Which one of the following materials is used for making permanent magnets?

Steel

Carbon

Carbon-Steel

Graphite

⇒ If for a silicon

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*p*-

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inverse active mode

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⇒ In the given figure shows a 10dB directional coupler. If power input at port 1 is 100 mW, power output at port

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20 mW

25 mW

⇒ A moving coil instrument has a resistance of 0.6 Ω and full scale deflection at 0.1 A. To convert it into an ammeter of 0-15 A range, the resistance of shunt should be

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0.06 Ω

0.1 Ω

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⇒ In a directional coupler

isolation (dB) equals coupling plus directivity

coupling (dB) equals isolation plus directivity

directivity (dB) equals isolation plus coupling

isolation (dB) equals (coupling) (directivity)

⇒ Which of the following is not a valid logical expression in Pascal?

A > = B

A < = B

A = < B

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⇒ The input impedance for folded dipole antenna (two half dipole) is

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377

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⇒ The initial state of MOD-16 down counter is 011. After 37 clock pulses, the state of the counter will be

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⇒ For satellite communication, standard Earth stations have antenna diameters in the range of __________ metre.

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⇒ Find the number of loop equation and number of possible trees for the given gr

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7, 262144

7.5764801

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⇒ 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

⇒ If

*p*is the probability of success and

*q*is the probability of failure, then the probability that there are

*r*successes in

*n*trails is

^{n}

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*p*

^{r}*q*

^{n}

^{-}

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_{r}

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^{r}^{n}

*c*

_{r}

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^{+}

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^{n}*q*

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⇒

Match the following:

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

A. | Copper | 1. | produces discrete energy level just above valence band |

B. | Rubber | 2. | produces discrete energy level just below conduction band |

C. | Antimony | 3. | large forbidden gap |

D. | Boron | 4. | valence and conduction bands overlap |

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

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

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

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

⇒ In a ripple counter,

whenever a flip flop sets to 1, the next higher FF toggles

whenever a flip flop sets to 0, the next higher FF remains unchanged

whenever a flip flop sets to 1, the next higher FF faces race condition

whenever a flip flop sets to 0, the next higher FF faces race condition

⇒ Which converters uses integrating op-amp?

Parallel A/D converter

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Dual slope A/D converter

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⇒ In a conductor the current flow is due to

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⇒ A pair of 21114s can store __________ words of __________ bits each.

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⇒ For the high-pass circuit to act as a differentiator, the time constant must be

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very high in comparison to the time period of the input signal (that is low pass circuit)

moderate value

⇒ Two identical NMOS transistors M

_{1}and M

_{2}are connected as shown below. V

_{bias}is chosen so that both transistors are in saturation. The equivalent

*g*of the pair is defined t

_{m}the sum of individual

*g*'s of the transistors

_{m}the product of individual

*g*'s of the transistors

_{m}nearly equal to the

*g*of M

_{m}_{1}

nearly equal to

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_{m}*g*

_{0}of M

_{2}

⇒ A signum function is

zero for

*t*greater than zero

zero for

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unity for

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⇒ A parallel plate capacitor with air as dielectric has a capacitance C. If the dielectric has a dielectric constant ∈

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∈

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∈

^{3}

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NOR

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purely real and even

purely imaginary and odd

purely real and odd

⇒ A total of 16 equally probable events exist. If it is required to select one out of them, the number of required bits is

2

4

3

5