1. The reciprocity theorem is applicable for

- only multisource network
- only single-source network
- multisource with time-varying elements
- single source with time-varying elements

2. In any bilateral network, if a source of e.m.f. E in any branch produces a current I in any other branch, then same e.m.f. acting in the second branch would produce the same current I in the first branch. This statement is associated with

- superposition theorem
- compensation theorem
- reciprocity theorem
- none of the above

3. In balanced bridge, if the positions of detector and source are interchanged, the bridge will still remain balanced. This can be explained from which theorem?

- reciprocity theorem
- superposition theorem
- compensation theorem
- Norton theorem