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It is said that buffer is used when any circuit has to drive large outputs. why is buffer used?
1 3522Why EMI is very low in optical fiber,while frequency is very high? As we no that in general condition frequency inversely proportional to EMI.
IIT,
2 4611Which type of power plant is more easier to produce electrical power at economical condition?
HAL,
2126Where is the maximum temperature in refrigeration cycle? a.Between evaporator & compressor. b.At Compressor c.Between compressor and condensor. d.At condensor
2217The ratio of Emissive to absorption power of heat by a body is equal to heat emitted by a perfect black body. Who said the statement
HAL,
2371Post New Electronics Communications Questions
Tell me why bjt is called current control device?
What is the formula for power gain when input gain & output gain is given?
Draw the circuit diagram of 1φ capacitor commutated current source inverter and explain its operation with equivalent circuits for different modes and necessary wave forms?
What is the maximum or minimum value of tv in msa to calculate r&r?
What is meant by pmdc?
What is current commutation?
im an electronics and communication engineering..i have to attend an interview based on contract basis.i kindly request u to send all possible questions to my mail. MY EMAIL ID IS -ashishkashyap931@gmail.com
what is the effect of increase resistance on reluctance?
1. What is leakage current? 2. Transistor VI characters? Explain. 3. What is dc load line? 4. Differential amplifier circuit. 5. Recursive interrupts. 6. Diagram case microcontroller and Eprom 7. Use of grey code? 8. Design counter from 1 to 11. 9. Characteristic impedence?Z0 value of probe used in lab. 10. 3 input TTL logic. 11. What is Pseudo random sequence? Why it is called so? 12. What is stack? 13. Different types of voltage regulation?
What is the forbidden energy gap? How does it occur?
Draw the symbol of jfet and mosfet.
How many types of number system are there?
What is a transistor? What are its applications?
please send the last 5 years {{{JUNIOR ENGINEER - ELECTICAL, ELECTRONICS RRB CHENNAI}}} TECHNICAL question papers TO MY EMAIL ID megalasri@gmail.com I AM BE APPEARING STUDENT CAN I FILL THE FORM OF SECTION ENGG i have to face written test of rrb for the post of J.E (signal), so please send me the old/model question papers for this post to my e-mail ? electronics).for tecnical test question which book is preferred. Railway recruitment board (Changighar examination 2006 & 2005&2004 question papers. Wtion to Your Friend] RRB examination.so which book I have to refer?
Why we need biasing for transistor, fet and mosfet?
