why in 8085 microprocessor some address and data bus are same help me ...

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can we calculate the voltage level for microwave energy which is using for our mobile communication?

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Hi.. I M Goinig to appear for ISRO exam On 26 April 2009. is any body tel mi the pattern of question paper ant the interview question regarding that...

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Explain the working of stepping motors.

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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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20 transistors go in a box and two dozen boxes are packed in a carton. How many cartons will be needed to pack 1920 transistors?

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iam an electronics & comm engg student.i have applied for AAI can u please forward the old and related question papers to my id lali.ece63@gmail.com

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what are the components of LAN

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what is the difference between the ss7 and ip,and why we go for ip structure over ss7

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What happens to the series current , load current and zener current when the dc input voltage of a zener regulator increases?

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whatis intersymbol interference

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What are the two modes of mosfet?

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