Match List I with List-II and select the correct answer using the code given below the lists:   List I   List II A.  Superposition   theorem 1.  Impedance matching in audio   circuits B.  Thevenin's   theorem 2.  Linear bilateral networks C.  Kirchhoff's   voltage and  current laws 3.  Large network in which   currents in few elements to be   determined D.  Maximum power   transfer theorem 4.  Currents and voltage in all   branches of a network?

Option 4 : A - 2, B - 3, C - 4, D - 1

Explanation:

Superposition Theorem

• It states that in any linear, active, bilateral network having more than one source, the response across any element is the sum of the responses obtained from each source considered separately and all other sources are replaced by their internal resistance.
• The superposition theorem is used to solve the network where two or more sources are present and connected.
• It can be applied to Linear bilateral networks.
• The bilateral circuit allows the current flow in both directions.
• The transmission line is the main example of the bilateral circuit because if you give a power supply from any direction, the circuit properties remain constant

Thevenin Theorem

• It can be applied in complex or large networks to find current and voltage in few branches.
• Thevenin’s Theorem states that it is possible to simplify any linear circuit, no matter how complex, to an equivalent circuit with just a single voltage source and series resistance connected to a load.

Various Theorem and the circuits where they are applicable is shown below in the table: