working principle of direct digital controllers(DDC Panel)

0 Answers   Google,

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How can I understand electronic/electrical panel wiring & drawing?

0 Answers  

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connecting 2 transistor seriesly.In 1st trans base applying 5v then how the current will go.

1 Answers  

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WHEN A SIGNAL x(t) GIVEN TO DIFFERENTIATOR Gives y(n); when y(t) is multiplied by sinusoidal signal gives a positive sided sinusoidal signal, what is the laplace transform of x(t)& y(t)? y(n) ?

1 Answers  

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Why fet is known as voltage control device?

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what is the voltage level of noise signal?

1 Answers   Samsung,

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principal of celling fan

1 Answers  

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What is 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? Explain an ideal voltage source? Explain 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 half-duplex and full-duplex communication? Which range of signals is used for terrestrial transmission? Why is there 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? Explain 3 dB cutoff frequency? Why is it 3 dB, not 1 dB? Explain ASCII, EBCDIC?

3 Answers   DRDO, Electronics,

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What are the various logic gates?

0 Answers  

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numerical on resolution of ADC.

0 Answers   ONGC,

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What is hole theory

0 Answers  

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how does op-amp work?

2 Answers   Bright Point,

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