why do you choose ece branch?

51 Answers   College School Exams Tests, DWE, ECE Industries, Focus, Hitachi, Industrial Power Supplies, Infosys, Reliance, Sony, TATA, TCS,

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Why we use capacitors with crystal?

2 Answers  

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which is best technique among CDMA & GSM

5 Answers   HCL, Tata Teleservices,

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Alok and Bhanu play the following min-max game. Given the expression N = 9 + X + Y - Z Where X, Y and Z are variables representing single digits (0 to 9), Alok would like to maximize N while Bhanu would like to minimize it. Towards this end, Alok chooses a single digit number and Bhanu substitutes this for a variable of her choice (X, Y or Z). Alok then chooses the next value and Bhanu, the variable to substitute the value. Finally Alok proposes the value for the remaining variable. Assuming both play to their optimal strategies, the value of N at the end of the game would be 27 0.0 20 18

3 Answers   TCS,

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what is modem

5 Answers   HCL,

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What is meant by D-FF? What is the basic difference between Latches and Flip flops? What is a multiplexer? How can you convert an SR Flip-flop to a JK Flip-flop? How can you convert an JK Flip-flop to a D Flip-flop? What is Race-around problem? How can you rectify it? Which semiconductor device is used as a voltage regulator and why? What do you mean by an ideal voltage source? What do you mean by zener breakdown and avalanche breakdown? What are the different types of filters? What is the need of filtering ideal response of filters and actual response of filters? What is sampling theorem? What is impulse response? Explain the advantages and disadvantages of FIR filters compared to IIR counterparts. What is CMRR? Explain briefly. What do you mean by half-duplex and full-duplex communication? Explain briefly. Which range of signals are used for terrestrial transmission? What is the need for modulation? Which type of modulation is used in TV transmission? Why we use vestigial side band (VSB-C3F) transmission for picture? When transmitting digital signals is it necessary to transmit some harmonics in addition to fundamental frequency? For asynchronous transmission, is it necessary to supply some synchronizing pulses additionally or to supply or to supply start and stop bit? BPFSK is more efficient than BFSK in presence of noise. Why? What is meant by pre-emphasis and de-emphasis? What do you mean by 3 dB cutoff frequency? Why is it 3 dB, not 1 dB?

0 Answers   MAHINDRA,

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What is meant by saying at what current is transistor biased?

0 Answers  

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1.Why we have to use inductor in circuits, what is their behavior? 2. Why we have to use capacitor in circuits, what is their behavior?

1 Answers   Instronix,

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Why the aspect ratio of tv video display is 4:3 or 16:9? Why not it is any other?

0 Answers  

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what is the exact difference between zener breakdown voltage and avalanche voltage??

3 Answers   TCS,

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send me few previous years section engineer question papers?..

0 Answers  

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Define what is meant by phase reversal?

0 Answers  

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