sir iam appearing railway exam 12to 15 times but unfortunately i could not qualify the written examination.can u give some suggestion for how to appear. this examination

2 Answers  

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Define what happens to the conductivity of semiconductor with the rise in temperature? Compare with the conductivity of metals.

0 Answers  

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why telecom tower having two color( Red and White)in all of the world, any solid reason

4 Answers   IEEE,

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What are the main components used for isolating the power circuits, power semiconductor from the low-power circuit?

0 Answers  

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what is differences between 3 way manifold transmitter and 5 way manifold transmitter?

1 Answers   Kentech,

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what is the h-parameter?

3 Answers   TATA,

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from 12v,100ma power supply how an i get 5v,1amp draw the power supply diagram

0 Answers  

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7805 working? why are 2 capacitors used in the circuit? can 2 diodes be used for making 5v supply?

3 Answers  

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tel me the diffference between transistor and bios

3 Answers   BEL,

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State the kirchoff`s laws.

0 Answers  

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Which switch and driver is better for 20KHz output and switch able to handle 1000v of Vce

1 Answers   DSS,

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what is the future of fibre channel sans?

1 Answers  

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