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Q. Explain about Folded network?
Folded network: When all the outlets/inlets are connected to the subscriber lines, logical connection appears as displayed in figure. In this case, output lines are folded back to input and hence the network is known as a folded network. Four types of connection can be established:
1. Local call connection between two subscribers in the system.
2. Outgoing call connection between a subscriber and an outgoing trunk.
3. Incoming call connection between an incoming trunk and a local subscriber.
4. Transit calls connection between an incoming trunk and an outgoing trunk.
In a folded network with N subscriber, there may be a maximum of N/2 simultaneous calls or information interchanges.
Transistor as an amplifier: Figure: Amplifier circuit, standard common-emitter configuration. The common-emitter amplifier is planned that is why a small change i
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Testing for Continuity : You may have observed sometimes that when all the connections in the appliance as well as the plug are made properly the appliance may still not work. Thi
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