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It is uneconomic to provide adequate equipment to carry all the traffic which could possibly be offered to a telecommunication system. In a telephone exchange it's theoretically possible forevery subscriber to make a call concurrently. A situation can so arise when all the trunks in a group of trunks are busy and so it can accept further calls. This state iscalled congestion. In a message-switched system, calls that arrive during congestion wait in a queue until an outgoing trunk becomes free. So they are delayed however not lost. Such systems are thus known as delay system or queuing systems . In a circuit-switched system, like a telephone exchange, all attempts to make calls over a congested group of trunks are successful. Such systems are hence termed as lost-call systems. In a lost-call system result of the congestion is that traffic actually carried is less than traffic offered to the system.
What is the process of metal removal in electrochemical machining? What are the basic functions of electrolyte in ECM? Illustrate the following key terms in electrochemical mach
GTO ( Gate Turn Off) GTO stands for gate turn off thyristor . it is four layer PNPN device. It can be triggered into conduction like a conventional thyristor by a pulse
Write shorte note on Carbon. Carbon: The rate of commutator wear in electrical machines is greatly decreased by using brushes made of carbon. Carbon (C) is also used in autom
The Parallel Resistance rule Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4
Q. Explain the basic macroeconomic policy trilemma for open economies. Answer: Of three goals mainly countries share - independence in financial policy and stability in t
Memory Address The memory address is of 16 bits. It ranges from 0000?H to FFFH 16bits address lines of 8085 microprocessor are capable of addressing 216 i e 65, 536, ( or
DPR PREPARATION: 1. Asset Management 2. System Operations and Despatch 3. Field Operations 4. Customer Processes 5. Corporate Processes The details covered
what is transistor how it works?
SUB Instruction Op code format is of SUB instruction is Replace the three bit code of the register R from to obtain the op code of the required SUB instruction . o
A single-phase, 50-kVA, 2400:240-V, 60-Hz distribution transformer has the following parameters: Resistance of the 2400-V winding R1 = 0.75 Resistance of the 240-V winding R2
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