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a 088-microm communication system transmits data over a 10-km single-mode fiber by using 10-ns fwhm pulses determine
1 sketch the variation of optical power with time for a digital nrz bit stream 010111101110 by assuming a bit rate of
an analog voice signal that can vary over the range 0-50 ma is digitized bysampling it at 8 khz the first four sample
a 155-microm digital communication system operating at 1 gbs receives an average power of -40 dbm at the detector
1 calculate the carrier frequency for optical communication systems operating at 088 13 and 155 microm what is the
free answer of what are the basic questions that we seek to answer in this chapter in what way is the model presented
a 13-microm lightwave system uses a 50-km fiber link and requires at least 03 microw at the receiver the fiber loss is
find the maximum frequency shift occurring because of the spm-induced chirp imposed on a gaussian pulse of 20-ps width
derive an expression for the sensitivity of an apd receiver by taking into account a finite extinction ratio for the
consider a 08-microm receiver with a silicon p-i-n photodiode assume 20 mhz bandwidth 65 quantum efficiency 1 na dark
derive an expression for the timing-jitter-induced power penalty by assuming a parabolic pulse shape it ip1-b2t2 and a
1 calculate the charge transferred in 25 minutes by a current of 500 ma2 a current of 36 a transfers a charge of 375 mc
1 calculate the pd developed across a 750 omega resistor when the current flowing through it isa 3 ab 25 ma2 an emf of
nbspa battery of emf 50 v and internal resistance 02 omega supplies a current of 18 a to an external load under these
a 12 omega resistor is connected in parallel with a 15 omega resistor and the combination is connected in series with a
the terminal pd of a dc source is 225 v when supplying a load current of 10 a if the emf is 24 v calculatea the
in a test the velocity of a body was measured over a period of time yielding the results shown in the table below plot
1 for the circuit arrangement specifi ed in q12 above determine the power and energy dissipated by the external load
1 the insulation resistance between a conductor and earth is 30 m omega calculate the leakage current if the supply
a 110 v dc generator supplies a lighting load of forty 100 w bulbs a heating load of 10 kw and other loads which
the field winding of a dc motor is connected to a 110 v supply at a temperature of 18degc the current drawn is 0575 a
a coil consists of 1500 turns of aluminium wire having a cross-sectional area of 075 mm 2 the mean length per turn is
assignmentpart 1question 1a small consulting company wants to make the switch to quickbooks online all of their
1 two 560 omega resistors are placed in series across a 400 v supply calculate the current drawn2 when four identical