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Q1. | The OP-AMP circuit shown above represen |

A. | high pass filter [Wrong Answer] |

B. | low pass filter [Correct Answer] |

C. | band pass filter [Wrong Answer] |

D. | band reject filter [Wrong Answer] |

View Answer
Explanation:-
Answer : BDiscuss 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 :**

⇒ RMS value of

*i*(

*t*) = 10[1 + sin (-

*t*)] is

10

10/2

l50

102

⇒ Reflex klystron oscillator is essentially a low power device

TRUE

FALSE

⇒ Which one is correct option?

- A pure capacitor never dissipates energy, but only stores.
- Capacitor can store finite amount of energy even cunent is zero.
- The current through a capacitor is zero if voltage across it d.c.
- Voltage across a capacitor cannot change instantaneously since it would require an infinite current.
*q*_{c}(0^{-}) =*q*_{c}(0^{+})

5, 4, 3, 2

3, 4, 1, 2

2, 4, 3, 1

1, 2, 3, 4, 5

⇒ Calculate cut off frequency for dominant mode in rectangular waveguide if dimensions are

*a*= 2,

*b*= 1 cm.

7.5 GHz

1.5 GHz

15 GHz

150 GHz

⇒ 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

⇒ The constant M loci on G(

*s*) plane are a family of circles.

TRUE

FALSE

⇒ A single phase full wave regulator feeds R-L load. The best gating signal is

short duration pulses

long duration pulses

pulse train

either (a) or (b)

⇒ Which of the following voltmeters would you use for measuring voltage across 20 kΩ resistance?

Voltmeter having a resistance of 5 kΩ

Voltmeter having a sensitivity of 1 kW/V

Voltmeter having sensitivity of 10 kW/V

None of the above

⇒ End fire array is called a linear resonant dipole array.

TRUE

FALSE

⇒ A moving coil instrument has a resistance of 0.5 Ω and a full scale deflection of 0.1 A. To convert it into an ammeter of 0-10 A the shunt resistance should be

0.004 Ω

0.005 Ω

0.05 Ω

0.1 Ω

⇒ A planar graph has 6 nodes and 7 branches. The number of meshes in the dual graph is

2

3

4

6

⇒ Which one of the following power amplifier has the maximum efficiency?

Class A

Class B

Class AB

Class C

⇒ The sum of two or more arbitrary sinusoidal is

always periodic

periodic under certain conditions

never periodic

periodic only if all the sinusoidals are identical in frequency and phase

⇒ High frequency oscillations can be caused by

electric coupling

magnetic coupling

ground loop

all of the above

⇒ A short circuited stub is shunt connected to a transmission line as shown in the figure is, if

*z*

_{0}= 500 ohms, the admittance

*y*seen at the function of the stub and the transmission line

(0.01 -

*j*0.02) mho

(0.02 -

*j*0.01) mho

(0.04 -

*j*0.02) mho

(0.02 +

*j*0) mho

⇒ The tape recorders used in homes have

common head and common amplifier system for recording and playback

different heads and amplifiers for recording and playback

same head but different amplifiers for recording and playback

different heads but same amplifier for recording and playback

⇒ In a magnetron the magnetic flux density is of the order of

1

*mWb*/

*s*

1

*Wb*/

*m*

^{2}

10

^{6}

*m*/

*s*

10

^{12}

*m*/

*s*

⇒ Which of the following is true?

During addition if the carry into and carry out of the sign bit do not match then an overflow has occurred

During addition if the carry into and carry out of the sign bit don't match then an overflow or underflow has occurred

During addition if the carry into and carry out of the sign bit match then an overflow or underflow has occurred

During addition if the carry into and carry out of the sign bit match then an overflow has occurred

⇒ The inductance of a coil can be increased by

choosing core material having high relative permeability

decreasing diameter of the former

decreasing the number of turns

increasing core length

⇒

**Assertion (A):** A TRIAC is a bidirectional SCR.

**Reason (R):** A TRIAC is a four layers 3 terminal device and can conduct in both directions.

Both A and R are correct and R is correct explanation of A

Both A and R correct but R is not correct explanation of A

A is correct but R is wrong

A is wrong but R is correct

⇒ The amount of dielectric heating is inversely proportional to frequency.

TRUE

FALSE

⇒ Typical switching time for ECL is

5 nano seconds

5 micro seconds

5 milli seconds

5 seconds

⇒ For an I/p of V

_{s}= 5 sin ω

*t*(assuming ideal diode), circuit shown in the figure will behave

clipper, sine wave clipped at -2 V

clamper, sine wave clamped at -2 V

clamper, sine wave clamped at 0 volts

clipper, sine wave clipped at 2 V

⇒ For what positive value of K does the polynomial

*s*

^{4}+ 8

*s*

^{3}+ 24

*s*

^{2}+ 32

*s*+ K have roots with zero real parts?

10

20

40

80

⇒ A λ/4 long high frequency transmission line is terminated into one impedance Z

_{R}. If Z

_{0}be the characteristic impedance of the line, then input impedance Z

_{in}is

Z

_{o}Z

_{R}

Z

^{2}

_{R}/Z

_{o}

Z

^{2}

_{0}/Z

_{R}

Infinity

⇒

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

⇒ The direction of pick up in a CD is

linear from centre towards edge

linear from edge to centre

nonlinear from centre to edge

nonlinear from edge to center

⇒ The logic circuit given below converts a binary code

*y*

_{1}

*y*

_{2},

*y*

_{3}

Excess - 3 code

Gray code

BCD code

Hamming

⇒ At room temperature the number of conducting electrons in an intrinsic semiconductor

is almost equal to the number of valence electrons

is about half the number of valence electrons

is small as compared to the number of valence electrons

is a very small fraction of the number of valence electrons

⇒ A buffer amplifier should have

high output impedance and high input impedance

high output impedance and low input impedance

low output impedance an low input impedance

low output impedance and high input impedance