what is the use of FR-4(flame retardant)in PCB design
why dielectric material used in inner layer in PCB design
technology??
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i have been filled the form of AIRPORT AUTHORITY OF INDIA for ATC & ELECTRONICS but this is may i did'nt got exam date .when it will conduct.
Why we use signal&voltage isolator between source n load.
how apb protocol has a minimum power consumption?
what is fringing capacitance...
What is CMRR? Explain briefly.
what is bal
under which condition we shall prefer a shunt capacitor filter?
what is the specific application of PLC in communications, control systems and automation?
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 is multiplexing?
state barkhausen criteria?
How to Create the Node file with Multi Dropping