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Q1. | In the circuit shown in the given figure, R_{L} will absorb maximum power when its valu |

A. | 2.75 Ω [Wrong Answer] |

B. | 7.5 Ω [Wrong Answer] |

C. | 25 Ω [Correct Answer] |

D. | 27 Ω [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 :**

⇒ The

*h*parameter equivalent to ac resistance

*r*

_{e}is

*h*

_{ib}

*h*

_{fe}

*h*

_{ob}

*h*

_{rb}

⇒ The trigonometric Fourier series for the waveform

*f(t)*shown below con

only cosine terms and zero value for the dc component

only cosine terms and a positive value for the dc component

only cosine terms and a negative value for the dc component

only sine terms and a negative for the dc component

⇒ In the following limiter circuit, an input voltage V

_{1}= 10 sin 100p

*t*applied. Assume that the diode drop is 0.7 V when it is forward biased. The zener breakdown voltage is 6

6.1 V, -0.7 V

0.7 V, -7.5 V

7.5 V, -0.7 V

7.5 V, -7.5 V

⇒ If

*f*(

*t*) = -

*f*(-

*t*) and

*f*(

*t*) satisfies Dirichlet conditions, then

*f*(

*t*) can be expanded in Fourier series having

sine terms only

cosine terms only

cosine and constant terms

sine and constant term

⇒ In 8085 microprocessor, what is the length of temporary register?

6 bits

8 bits

12 bits

16 bits

⇒ If

*i*

_{b}is plate current,

*e*

_{b}is plate voltage and

*e*

_{c}is grid voltage the

*v*-

*i*curve of a vacuum triode

0.5 and 1

- 2 and 1

30 and 1

30 and 1.5

⇒ Volt is equivalent to

joule/coulomb

joule/watt

joule/ampere

joule/volt

⇒ Consider the following statements about a moving iron instrument

- It is an unpolarised instrument.
- It has permanent magnet.
- It has a fixed coil.
- It has two iron vanes.

1, 2, 3 are correct

1, 2, 4 are correct

1, 3 and 4 are correct

2, 3, 4 are correct

⇒ Which one is not a valid subscripted variable?

KET(2

^{*}J, 3

^{*}1 - 4)

MET(J + 2, K - 4)

A (2 I)

VEL(I)

⇒ The accuracy of a multimeter is about

± 0.5%

± 3%

± 0.01%

± 10%

⇒ The current wave in figure is passed through 3 H inductor. The voltage across inductance during the period 2 <

*t*< 3 second

12 V

- 12 V

6 V

- 6 V

⇒

Match the following:

List I (Bit Pattern) | List II (Register pairs) | ||
---|---|---|---|

A. | 00 | 1. | SP |

B. | 01 | 2. | B-C |

C. | 10 | 3. | D-E |

D. | 11 | 4. | H-L |

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

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

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

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

⇒ Regulation of the DC power supply of 12 V, 100 mA is the effective resistance of power supply is 20 Ω

0.22

1.31

0.3

0.2

⇒ One can format a disc using window explorer.

TRUE

FALSE

⇒ The frequency response of a microphone means

bandwidth of frequencies having output with in ± 1 dB of the output at 1000 Hz

bandwidth of frequencies having output with in ± 3 dB of the output at 1000 Hz

bandwidth of frequencies having output with in ± 1 dB of the output at 500 Hz

bandwidth of frequencies having output with in ± 3 dB of the output at 500 Hz

⇒ MF is generally used for

telegraphy

radio and television links

satellite communication

broadcasting, navigation

⇒ ADM stands for

Angle Delta Modulation

Angle Digital Modulation

Adaptive Delta Modulation

Adaptive Digital Modulation

⇒ The mass of an electron is nearly

9.1 x 10

^{-27}kg

9.1 x 10

^{-29}kg

9.1 x 10

^{-31}kg

9.1 x 10

^{-35}kg

⇒ A super heterodyne receiver has a IF of 465 kHz. It is tuned to a station broadcasting at 500 KHz and its oscillator is operating at 965 KHz, then the 1330 KHz frequency would be

adjacent channel frequency

image frequency

gyro frequency

maximum usable frequency

⇒ When two 16-input multiplexers drive a 2-input MUX, what is the result?

2-input MUX

4-input MUX

16-input MUX

32 input MUX

⇒ A 1000 kHz carrier is simultaneously modulated with 300 Hz, 800 Hz and 2 kHz audio sine waves. Which of the following frequency is least likely to be present in the output?

1002 kHz

1000 kHz

999.2 kHz

998.0 kHz

⇒ Nichrome is commonly used for

lamp filaments

transformer winding

heater coils

battery connections

⇒ The time constant of the circuit in figur

RC

2 RC

3 RC

5 RC

⇒ Which of the following features is not associated with Nichols chart?

(0

*d*B, -180°) point on Nichols chart represent critical Point (-1, 0)

It is symmetric about -180°

M loci are centred about (0 dB, -180°) point

The frequency at intersection of G(

*j*ω) locus and M = +3 dB locus gives bandwidth of closed loop system

⇒ The input differential stage of op-amp. 741 is baised at about 10 μA current such a low current of the input stage gives

- high CMRR
- high differential gain
- low differential
- high input impedance

1 and 2

1, 2 and 4

3 and 4

1, 2, 3 and 4

⇒ The standard deviation of a set of observations is the rms value of the deviation from the arithmetic mean.

TRUE

FALSE

⇒ A cycloconverter cannot give a frequency higher than input frequency.

TRUE

FALSE

⇒ Read the following rules for scanning Boolean expressions in Pascal

- The expressions are scanned from left to right.
- The operations are scanned in the order NOT, AND, OR.
- All operators (
*i.e.,*NOT, AND and OR) are scanned together. - In one scanning all the operators of only one type are scanned.

All

1, 2 and 3 only

1, 2 and 4 only

2, 3 and 4 only

⇒ Impedance inversion may be obtained with

half wave line

a short circuited stub

complex impedance Z connected in series with line

quarter wave line

⇒ In Z

_{RC}(

*s*) has a pole at

*s*= 0, the first element in second Foster realization is

R

C

R and C in series

R and C in parallel