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Q1. | The value of current read by ideal ammeter A in figure is __________ amp |

A. | 0 [Wrong Answer] |

B. | 3 [Wrong Answer] |

C. | 2.5 [Wrong Answer] |

D. | 5 [Correct Answer] |

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

⇒ Consider the following statements about conditions that make a metal semiconductor contact rectifying

- N type semiconductor with work function φ
_{s}more than work function φ_{M}of metal - N type semiconductor with work function φ
_{s}less than work function φ_{M}of metal - P type semiconductor with work function φ
_{s}more than work function φ_{M}of metal - P type semiconductor with work function φ
_{s}less than work function φ_{M}of metal.

1 and 3 are correct

2 and 3 are correct

1 and 4 are correct

2 and 4 are correct

⇒ Consider the following statements for 8085

- The most significant 8 bits of address are transmitted on the 8 lines on which data is transmitted.
- Eight pins are dedicated to transmit the most significant 8 bits of memory address.
- The least significant 8 bits of address are transmitted on the lines on which data is transmitted.
- The data and leass significant 8 bits are transmitted at different points in time.

all

1, 2 and 3 only

2, 3 and 4 only

1, 3 and 4 only

⇒ Cross-over distortion behaviour is a characteristic of

class A output stage

class B output stage

class AB output stage

common base output stage

⇒ Consider the differential amplifier shown in figure. (Assume β is very hi

5 V

10 V

15 V

30 V

⇒ The damping ratio of a pair of complex poles when expressed in terms of angle θ measured from

*j*ω axis equal to

sin θ

cos θ

tan θ

cot θ

⇒ The polar plot of P (

*j*ω) = 45° as ω varies from -∞ to ∞ is

a straight line parallel to

*x*-axis

a straight line parallel to

*y*-axis

a line passing through origin and inclined at 45°

a line in first quadrant passing through origin and inclined at 45° to positive

*x*-axis

⇒ For overdamped systems a quadratic factor in transfer function can be replaced by two first order factors with real poles

TRUE

FALSE

⇒ Impedance inversion may be obtained with

a short circuited stub

a quarter wave line

an open circuited stub

a half wave line

⇒ In floating point representation, the accuracy is

10 bit

9 bit

8 bit

6 bit

⇒ It is desired to evaluate the expression

`F = B * COS (Y) + C * SQR (COS (Y) + A * COS (Y) * COS (Y) * COS (Y)`

`F = B * COS (Y) + C * SQR [COS (Y)] + A * COS (Y) * SQR [COS (Y)]`

`F = B * COS (Y) + C * COS(Y) * COS (Y) + A * COS (Y) * COS (Y) * COS (Y)`

` X = COS(Y)`

⇒ A signal with ± 10 V ranged and 1 KHz band width is being digitized using a sample and hold circuit and a 10 bit quantizer. The quantization step is :

1 x 10^{-9} V

5 x 10^{-9} V

2.5 x 10^{-9} V

0.5 x 10^{-9} V

⇒ 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

⇒ An 8 bit data is to be entered into a parallel in register. The number of clock pulses required is

8

4

2

1

⇒ Which statement is true for an ac circuit?

Active power is always less than apparent power

Active power cannot be more than apparent power

Active power is always more than reactive power

Active power cannot be more than reactive power

⇒ The gate width of a monostable multivibrator is given by

T = 1.1 RC

T = 0.693 RC

0.963 RC

T = 0.369 RC

⇒ Inverse Fourier transform of '1' is

U(*t*)

δ(*t*)

0'

infinite

⇒ The state equations are in the form

X = AX + BW

X = AX + Bu

X = AX + Bx

either (a) or (b)

⇒ The load circuit of a single phase full bridge inverter

must be underdamped

must be overdamped

may be underdamped or overdamped

may be any type of load

⇒ If the potential functions V_{1} and V_{2} satisfy Laplace's equation within a closed region and assume the same values on its surface, then which of the following is correct?

V_{1} and V_{2} are identical

V_{1} is inversely proportional to V_{2}

V_{1} has the same direction as V_{2}

V_{1} has the same magnitude as V_{2} but has different direction

⇒ Which of the following directives in 8085 causes two bytes to be reserved in the memory?

D S

D B

D W

E Q U

⇒ TTL uses

multi-emitter transistors

multi-collector transistors

multi-base transistors

multi-emitter or multi-collector transistors

⇒ For an ideal 3000 Hz channel, S/N ratio is

3

1.5

4

2

⇒ Which of the following is a vector quantity?

Standing wave ratio

Reflection coefficient

Gain

All of the above

⇒ If carrier modulated by a digital bit stream had one of the possible phases of 0°, 90°, 180°, 270°, then the modulation is called.

BPSK

QPSK

QAM

MSK

⇒ For the floating point numbers 1.81 x 10^{-29} and 0.0152 x 10^{18} the normalised forms are

0.181 x 10^{-28} and 0.152 x 10^{17 }respectively

18.1 x 10^{-30} and 0.152 x 10^{17} respectively

0.181 x 10^{-28} and 1.52 x 10^{16} respectively

None of the above

⇒ A volt ratio box should have low resistance.

TRUE

FALSE

⇒ The shunt admittance of a transmission line is given by

γ = R + *j*ωL

γ = R - *j*ωL

γ = G + *j*ωC

γ = *j*ωGC

⇒ An RL impedance function can also be realized as

RC impedance function

RC admittance function

LC impedance function

LC admittance function

⇒ Match the following:

List I List II A. Ratio of maximum energy stored to energy dissipated per cycle 1. Propagation constant B. TEM mode is loss less medium 2. Cutoff frequency is zero C. Ratio of frequency in radian to phase velocity of EM wave 3. Quality factor of cavity D. TEM is the mode of lowest cutoff frequency 4. Cylindrical waveguide

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

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

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

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

⇒ All of the output pulses are at full transmitter power for a strong signal in all of the following except

PWM

PAM

PFM

PCM

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