Electric Circuits
Electric field intensity ( E ) at any point in an electric field is equal to

 ( potential gradient )1/2.
 potential gradient.
 ( potential gradient )1/3.
 ( potential gradient )2.

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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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