Suppose in market 4n27 is not easily available so which opto isolator can I use at the place of this? What is 4n27

0 Answers  

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What do mean by mnemonics in microprocessors? Give few examples.

9 Answers   NTPC,

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no. of interrupts of 8051 excluding reset.

10 Answers   CBIT, ONGC,

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what is the difference between electrical and electronic chokes

0 Answers  

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What are the applications of demultiplexer?

0 Answers  

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Draw a schematic diagram of a Half Adder. Can you draw the same using only NAND gates?

0 Answers   Ciena,

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why -48V is used in BTS?

1 Answers   ETSL,

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what is the maximum delay gnerated by 555timer and why?

0 Answers  

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Hi.2005 B.E passed out .I am looking for job in abroad.So Please help me .send placement consultancy address

2 Answers  

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Can anyone send me question papers for section engineer for railways and send me on my id- abhay_jg@yahoo.com

0 Answers   RRB,

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Define angle and amplitude modulation? What is noise in modulation?

0 Answers  

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What are difference between KVA & KW.

3 Answers   Bosch,

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