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why ac waveform repesented by using sine wave why not others?
Please somebody tell me the call flow for MO & MT call with diagram & complete explaination ?
Can someone guide me about the written test paper pattern for s/w engg having exp of more than 3yrs.will it be technical or aptitiude?
Hi, sir. im in need of placement questions to train myself as a professional engineer. this is my kind request.
Hi, Can any1 pl send me the question pattern of HPCL exam for the ELECTRONICS stream.pl send it to meerasowmi@gmail.com.hope to hear frm u very soon....
I have applied for the post of Assistant Instrumentation Engneer in IOCL and need urgently IOCL sample paper please help me.
Define the limitations in the operation conditions of a p-n junction.
Can any one please send me the hpcl question papers or pattern for ece branch please mail to sweetyastweety@gmail.com
Hi...........i want to know the pattern for written test for the post of Jr.Executive(Electronics) in AAI(Airports Authority Of India).Kindly send me the same.My email id Is zeenaz.786@gmail.com.
If R1=R2, then B=0.5, the total time T of square wave in astable multivibrator using op-amp is A T=RC B T=2 RC ln 3 C T=2 RC ln 2 D T=2RC ln (1+ 0.5)
sir please provide me the previous technical papers for hpcl writtien exam
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?
What happens when a voltmeter is connected in series with the circuit?
Explain the design 8421 to 2421 binary code converter?
Define rtos?
