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how to design step down 12 V, 1mA small transformer from 220 V AC? Because according to VI relation and power transfer it results bulky...
1681anyone knows service engineer in chennai for EDM SPARKING MACHINE.CHMER PULSE CD 60 M.pL GIVE ANY CONTACT NOS
1976What 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 8921Why we need two angle of projections ( 1st angle and 3rd angle)? Cant we standardize to one.
2 16421explain any 4 search engines? explain any 3 web server? list out the diff e-commerce to perform the electronic data interchange transition?any 5 in detial
1637HI frds,,,am final yr IT student.. i secured 81% in x 55% in xii 87% in Btech upto last sem (no standing arrears..) i dt kw clearly abt MNC eligibility criteria.. i heard tat TCS hired 1y abv 60% 1y..so pls help me.. wic cmpnys r anouncd 55% may eligibl in 2011??? pls rly me clearly and sugst som of d compny names...
1 1737
Is there a lower limit to the gland surface finish for static O-rings, gaseous system? surface finish table lists 0.41-0.81 micro-meters for static gaseous systems. What is the drawback of using a smoother surface finish lower than 0.41?
what is mean by restructuring power system?
Explain buyer communication
what is conventional shuttering rate per square feet of built up area? what is Mivan shuttering rate per square feet of built up area? what is coupler shuttering rate per square feet of built up area?
What is the specific speed of a pump ?
My lcd monitor not showing boot screen[dos]. Whenever I start the pc it shows blank screen till the windows xp starts. will you help me to solve this ?
A logic circuit that provides a HIGH output if one input or the other input, but not both, is HIGH, is a(n)?
Merits & Demarits of Oil circuit & Air circuit breakers ?
safety of centeral chiller plant
What is the maximum recommended velocity for steam in a plant pipe network?
can i get civil engineering test papers.......?????
What causes diesel engine to automatically stop?
what are the advantages of using a voltage follower amplifier?
Define grade?
Why iceo >> icbo?
