Electric Circuits
Third pin of a 3 pin plug is thicker and longer

 for protection purpose.
 for designing purpose.
 none of these.
 all pins are of same size.

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Electric Circuits
When we use super node technique

 ideal voltage source is connected between non reference node and reference.
All of these
 ideal voltage source is connected between two non reference nodes.
 current source branch is common for two meshes.

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