Electric Circuits
If the sheet of a backelite is inserted between the plates of an air capacitor, the capacitance will

 increase.
 decrease.
 becomes zero.
 remains unchanged.

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Electric Circuits
When we use super node technique

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

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