how to switch on electrical appliances through mobile call not sms please refer me connections detail or even link will do ?

1 Answers  

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AT INPUT OF ups ,n-e is 2 volt ,at out of ups n-e is 15volt why?

1 Answers   Quantum,

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difference bw latch & flip flop?

3 Answers  

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How will you send and receive data to a micro-processor? (One method is I/O mapped I/O which is the other one?)

1 Answers   DRDO,

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In a binary data sequence, the duration of symbol 0 or 1 is 1ms. If a carrier of freq 4khz is used in ask, what is the minimum transmission bandwidth required? What is min bandwidth?

0 Answers  

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Explain why cannot we use leds for rectification purpose?

0 Answers  

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Where PCM is used?

2 Answers  

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Name the two forms of boolean expression?

0 Answers  

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What are the advantages & disadvantages between analogue & digital watermarking?

1 Answers  

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what is RISC processor???????

4 Answers  

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What is the difference between generator differential protection and transformer differential protection??

0 Answers   TATA,

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what is ripple rejection?

1 Answers   TCS,

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