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Q1. | Norton's theorem reduces a two terminal network to |

A. | a constant current source and an impedance is parallel [Correct Answer] |

B. | a constant current source and an impedance in series [Wrong Answer] |

C. | a constant voltage source and an impedance in parallel [Wrong Answer] |

D. | a constant voltage source and an impedance in series [Wrong Answer] |

View Answer
Explanation:-
Answer : ADiscuss 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 :**

⇒ Which of the following term applies to troposcatter propagation?

SIDs

Faraday rotation

Atmospheric storms

Fading

⇒ Consider the following stateme

1, 2, 3

1, 3, 4

2, 3, 4

1, 2, 4

⇒ Which is most important subsystem for recovering and reconstructing signal in a TDM system?

Envelope detector followed by a low pass filter

Synchronization ckt for proper timing

Bandpass filter to segregate channels

Coherent detector to ensure frequency and phase connection

⇒ In a base driver amplifier the voltage gain is the ratio of

ac collector voltage to ac base voltage

ac emitter voltage to ac base voltage

ac collector voltage to ac emitter voltage

ac base voltage to ac emitter voltage

⇒ The antenna current of an AM broad cast transmitter, modulated to a depth of 40% by an audio sine wave is 11 amperes. It increased to 12 ampere as a result of simultaneous modulation by another sine wave. The modulation index due to this second sine wave is :

0.4

0.757

0.643

0.8

⇒ Which of these are 16 bit microprocessors?

80286

MC68000

Z8000

All

⇒ The range of RTD using platinum is about

-100° C to 700°C

-200°C to 1000°C

100°C to 1000°C

about 500°C

⇒ Consider the following statements as regards DPSK and DEPSK

- DPSK demodulator requires a device which operates at carrier frequency and provides a delay of bit time T
_{b} - In DPSK, synchronous demodulation recovers the signal
*b*(*t*) and the decoding of*b*(*t*) to generate*d*(*t*) is done at base band - In both DPSK and DEPSK errors always occur in pairs

1 and 3

1 and 2

2 and 3

1, 2 and 3

⇒ If current is less than 20 mA and time of contact is very small, the effect of current on human body is likely to be temporary.

TRUE

FALSE

⇒ The voltage of single phase supply to residential consumers in India is

400 V

230 V

2.2 kV

11 kV

⇒ In a JFET

drain current is very nearly equal to source current

drain current is much less than source current

drain current may be equal to or less than source current

drain current may be even more than source current

⇒ The phenomenon of creep occurs in

energy meters

voltmeters

ammeters

wattmeters

⇒ Typical values of

*h*parameters at about 1 mA collector current for small signal audio amplifier in CE configuration are :

*h*

_{ie}= 100 Ω,

*h*

_{re}= 10

^{-1},

*h*

_{fe}= 50,

*h*

_{oe}= 1 m mho

*h*

_{ie}= 5 kΩ,

*h*

_{re}= 10

^{-4},

*h*

_{fe}= 200,

*h*

_{oe}= 20 m mho

*h*

_{ie}= 5 kΩ,

*h*

_{re}= 0,

*h*

_{fe}= 50,

*h*

_{oe}= 2 m mho

*h*

_{ie}= 100 kΩ,

*h*

_{re}= 10

^{-2},

*h*

_{fe}= 100,

*h*

_{oe}= 10 m mho

⇒ Which statement is correct?

BJT and MOSFET are current controlled devices

BJT is voltage controlled and MOSFET is current controlled device

BJT and MOSFET are voltage controlled devices

BJT is current controlled and MOSFET is voltage controlled device

⇒ The directive gain of a transmitting antenna is

proportional to wavelength

inversely proportional to wavelength

proportional to square of wavelength

inversely proportional to square of wavelength

⇒ The time needed by a TTL circuit to switch from 0 to 1 or 1 to 0 is about

10 μs

10 ns

100 μs

50 ns

⇒ A capacitor input filter relies on

average detection

peak detection

both (a) and (b)

neither (a) nor (b)

⇒ The spectral component of noise associated with

*k*

^{th}frequency is given, in the limit as Δ

*f*→ 0 by

*n*(

_{k}*t*) written as

*n*(

_{k}*t*) = C

_{k}cos (2p

*k*Δ

*ft*+ θ

_{k1, 2 only1, 3 only1, 2, 32, 3 only}

⇒ For the logic circuit of the given figure the simplified Boolean expressio

A + BC

A + BC

A + B C

A + BC

⇒ The core of an atom consists of

nucleus

nucleus and all orbits

nucleus and inner orbits

none of the above

⇒ A battery charger can drive a current of 5A with 1Ω resistance connected at its output. If it can charge 2 V battery at 7 A rate, its Thevenin's equivalent circuit will be

7.5 in series with 0.5 Ω resistance

1.25 V in series with 1.5 Ω resistance

7.5 V in parallel with 0.5 Ω resistance

12.5 V in parallel with 1.5 Ω resistance

⇒ In the analogy between electric and magnetic circuits, flux is analogous to

current

voltage

rate of charge of current

rate of charge of voltage

⇒ The dual of a node is

mesh

principal node

tree branch

link

⇒ The signal m(

*t*) = 10 cos 100 p

*t*is sampled at the rate of F

_{s}= 75 H

_{z, }then determine signal after sampling.

4 cos 100 p

*t*+ 8 sin 200 p

*t*

4 cos 100 p

*t*+ 8 sin 200 p

*t*+ cos 75 p

*t*

4 cos 25 p

*t*+ 8 sin 50 p

*t*+ cos 75 p

*t*

none

⇒ The derivative of unit step function is

unit impulse

ramp with slope 1

impulse

either (a) or (b)

⇒ Assuming a minimum angle of elevation of 5°, a geosynchronous satellite remains in line-of-sight for __________ percentage of Earth's surface.

30.3

42.4

50

25

⇒ Which of the following may result in instability problem?

Large error

High selectivity

High gain

Noise

⇒ M = (μ

_{r}- 1)H.

TRUE

FALSE

⇒ In a half wave diode rectifier circuit the current flows in the load circuit for

90° in each cycle

180° in each cycle

270° in each cycle

360° in each cycle

⇒ Fourier transform and F(

*j*ω) of a signal

*f*(

*t*) has the property

F(

*j*ω) = F(-

*j*ω)

F(

*j*ω) = -F(-

*j*ω)

F(

*j*ω) = F

^{*}(

*j*ω)

F(

*j*ω) = -F

^{*}(-

*j*ω)