In the circuit, the switch has been open for a very long time. The switch is closed at time t = 0.
A switch is a fast device that takes incoming data packets and sends them to their intended location on a local area network in the context of networking (LAN).
A LAN switch can support any kind of packet protocol because it operates at the data link layer (Layer 2) or the network layer of the OSI Model. The layer 2 switch, often known as a bridge, is responsible for sending frames with data packets across network nodes or segments.
Switches are essentially the traffic officers of a basic local area network. Switching establishes the path taken by frames, which serve as the units of data, as they move from one part of a network to another.
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