Answer Posted / jagadheesh

capacitor support alternating voltages only but not constant voltages because capacitance is inversely proportional to the frequency and constant voltages are having zero frequency that means capacitance goes infinity so it does not support constant voltages

Define timer.

1013

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What is the need for load flow study?

1093

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What is the difference between circuit switching and packet switching?

1000

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Define nyquist criteria.

1024

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I've finished b tech in electronics and communication engg.Can i appaer for the nic exam

2071

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How WDM works in wireless system...as we say that it works in optical and signals transmitted in this are light signals...??

1836

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How the cellular phone is working?

2042

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What is half-adder?

1035

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Explain the difference between silicon controlled switch (scs) and gate turn-off switch (gto)?

1079

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2056

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Explain the various components used in creating digital circuits?

1000

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1116

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What is a resistor?

1110

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Explain why normally control terminal of 555 timer is connected to ground through a 0.01µf bypass capacitor?

1104

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.We want to compare the performance of a single threaded disk server with a multithreaded 1. Suppose the server takes 25 ms to receive a request for work from client, dispatch the request for processing and actual data request processing when reqd. Data is in main memory. If the reqd. Data is not in the main memory a real disk operation is needed and an additional 75 ms are reqd. On the average. On the average 25% of the clients requests access the disk. During the disk I/O period the thread waits. Assume that there is no other process in system when the server is running. How many requests can the server handle per second if its a)single threaded b)multithreaded

1895

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