Answer Posted / ashok
may be its a amplifier.But here we consider two cases basically.
1)Step up---Here the low voltage amplified to High
voltage.Its the working like same as Amplifier
2)Step down----Its not called as Amplifier.Its called
detecor or adaptor means to reduce the voltage
Is This Answer Correct ? | 3 Yes | 9 No |
Post New Answer View All Answers
What is an idea current source?
Define why iceo >> icbo?
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?
Dear concern Plz provide me the solved papers of Railway section engineer in signal...
What is simulator programme?
what is ISR? what is the return value of ISR?
what are types of walsh code in cdma.
what is duty cycle?
Why silicon and germanium are the two widely used semiconductor materials?
What is forced commutation?
How can a pseudo random noise code be usable?
What is Banked Register in Arm 7?
What are the properties of roc for z-transform?
Explain why the antenna is called passive element?
i am prepared to sectionengineer exam so which books are referd for that exam pls tell me