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Q1. | The 10 MHz in the specification of CRO means that |

A. | the sweep frequency is 10 MHz [Correct Answer] |

B. | the frequency of input signal should not be more than 10 MHz [Wrong Answer] |

C. | the vertical amplifier has been designed for 10 MHz [Wrong Answer] |

D. | none of the above [Wrong Answer] |

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

⇒ In a discharging R-L circuit voltage across the resistor exhibits

a linear rise

a linear decay

an exponential growth function

an exponential decay function

⇒ For the system in the given figure, the transfer function C(

*s*)/R(

*s*

G

_{1}+ G

_{2}+ G

_{3}

G

_{1}G

_{2}+ G

_{3}

G

_{1}G

_{2}G

_{3}

(G

_{1}+ G

_{2}) G

_{3}

⇒ Both Impatt and Trapatt devices use avalanche effect

TRUE

FALSE

⇒ Addition of 0.3 to 3.5% silicon to iron

increases the electrical resistivity of iron

decreases the electrical resistivity of iron

does not change electrical resistivity of iron

silicon can't be added with iron

⇒ The resistance of voltmeter affects the accuracy of measurement in loss of charge method.

TRUE

FALSE

⇒ Which of the following has the highest input impedance?

CE

CB

CC

Push pull

⇒ In a conductor the conduction and valence bands overlap

TRUE

FALSE

⇒ A triangular Pulse of 10 V peak is applied to a capacitor of 0.4 F. The change of the capacitor and its wavefor

8 rectangular

8 triangular

4 triangular

4 rectangular

⇒ For a bipolar transistor, avalanche multiplication factor depends on __________ .

V

_{CE}

V

_{CB}

V

_{BE}

none of these

⇒ The counter shown in the given figure

Synchronous

Johnson

Ring

None of the above

⇒ Mesh analysis is applicable __________ only.

planar network

non planar network

a circuit which contains only current sources

none

⇒ If D, G and η denote the directly, power gain and efficiency of an antenna, then which of the following relation holds :

DGη = 1

η = DG

D = ηG

D = G/η

⇒ The normalised form of 0.0152 x 10

^{18}is

0.152 x 10

^{17}

1.52 x 10

^{16}

15.2 x 10

^{15}

152 x 10

^{14}

⇒ Which one of the following is an active component?

Diode (

*p*-

*n*)

Transistor as Amplifier

Transformer

Inductor

⇒ The minority carrier life time and diffusion constant in a semiconductor material are respectively 100 microsecond and 100 cm

^{2}/sec. The diffusion length is

0.1 cm

0.01 cm

0.0141 cm

1 cm

⇒ Which one of the following is analog?

PCM

PWM

Delta modulation

Differential PCM

⇒ In log magnitude Bode diagram the slope of high frequency asymptote of (1 +

*j*ωT) is

20 dB per decade

10 dB per decade

20 dB per octave

10 dB per octave

⇒ The phase velocity of an EM wave propagating in a hollow metallic rectangular waveguide in the TE

_{10}mode is

equal to its group velocity

less than the velocity of light in free space

equal to the velocity of light in free space

greater than the velocity of light in free space

⇒ The phase angle of a lag circuit is

between 0 and -90°

between 0 and +90°

90°

more than 90°

⇒ Which of the following is correct? The circuit shown in the fig

1, 2 and 3

2, 3 and 4

1, 3 and 4

1, 2 and 4

⇒

**Assertion (A):** As the length of the resonant antenna is increased, the number of lobes increases and the direction of the major lobes is closer and closer to the direction of the diode.

**Reason (R):** As the length increases, the current distribution along the wire becomes more and more uniform.

Both A and R are individually true and R is the correct explanation of A

Both A and R are individually true but R is not the correct explanation of A

A is true but R is false

A is false but R is true

⇒ A zinc carbon cell is a primary cell.

TRUE

FALSE

⇒ In case of probability of the message is 1 to 16 then the information will be

16 bits

8 bits

4 bits

2 bits

⇒ The dc output voltage from a power supply

increases with higher values of filter capacitance and decreases with more load current

decreases with higher values of filter capacitance and increases with more load current

decreases with higher values of filter capacitance as well as with more load current

increases with higher values of filter capacitance as well as with more load current

⇒ In a transmission line terminated with a load equal to the characteristic impedance, the reflection coefficient is

0

1

-1

Infinity

⇒ The common emitter short circuit current gain β of a transistor

is a monotonically increasing function of the collector current I

_{c}

is a monotonically decreasing function of I

_{c}

increasing with I

_{c}, for low I

_{c}, reaches a maximum and then decreases with further increase in I

_{c}

is not a function of I

_{c}

⇒ Three analog signals, having bandwidths 1200 Hz, 600 Hz, 600 Hz are sampled at their Nyquist rates, encoded with 12 bit words, and time division multiplexed. The bit rate for the multiplexed signal is

115.2 kbps

28.8 kbps

57.6 kbps

38.4 kbps

⇒ Binary number 101101 when converted to its 2's complement will become

101.01

100.1

100.1

101.1

⇒ The charges between a hollow and solid metal spheres reside

through out in both

on outer surface in hollow and through out in solid

on the outer surface in both

none of the above

⇒ A is even or B is true. Negation of above statement is

A is odd or B is false

A is odd and B is false

A is even or B is false

A is even and B is false