Test: Circuit Theorems - 1 - Electrical Engineering (EE)

 means the total sum of instantenous power consumed in various elements in the branches of a network is zero, which is the statement of Tellegen’s theorem.

For finding the Thevenin’s equivalent resistance, 8 A current source will be open circuited while v volt voltage source will be short circuited.

Hence,

Applying KVL, we get

Putting the value of V₁ from equation (ii) into equation (i), we get

Computer circuits

Explanation:
The Maximum Power Transfer Theorem states that the maximum amount of power will be transferred from the source to the load when the load resistance is equal to the source resistance. This is important in electronic and electric circuits, as well as communicational circuits, where the primary goal is to transfer power efficiently.

However, in computer circuits, the primary goal is not to transfer power but to process information, perform calculations, and support various functionalities. In these circuits, the primary focus is on the efficient processing of information and minimizing power consumption. Maximum power transfer is not a key objective in computer circuits, as it can lead to increased power consumption and increased heat generation, which is undesirable for computer systems.

For the given circuit, R_eq across the given terminals = R.

When R = ∞, V_oc= V = 5 volts
When R = 0 , I_SC = 2 .5 A

Hence, the Thevenin's equivalent circuit will be drawn as shown below.

An ideal voltage source is never short circuited. Hence, we should not use superposition theorem. The voltage across the 5Ω resistor will be 10 volts. Hence, current through the 5 Ω resistor

=10/5 = 2 A