plz do tell me therotically how to make a ckt using a pnp transistor to operate a 24V relay. push button,diodes, resistors,capacitor and one pnp transistors are available.

3 Answers   Siemens,

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what is the difference between analog and digital communications? which is the efficient communication??

6 Answers  

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what is the need for modulation?

13 Answers  

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what is protocol.what is tcp/ip,http/ftp protocol

3 Answers  

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What is a bistable multivibrator?

0 Answers  

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what does hi-fi stands for

3 Answers   BEL,

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what is the status of the mobile when the mobile is ringing. A.Idle B.Traffic signal assigned

2 Answers  

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What is difference between 2 quadrant & 4 quadrant digital dc drive.

0 Answers   Siemens,

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what is the difference between linear and non linear elements.

9 Answers   BEL, Sony,

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what is the difference between electronics and power electronics

1 Answers  

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WHAT IS THE DIFFERENCE BETWEEN PLC AND embedded systems

0 Answers   IndoSolar, OGPL,

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What is meant by current commutation?

0 Answers  

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