a) For the given network; find the equivalent circuit of terminals dc. R2 ww ww R1 R. R;3 A(v, - v.)
KVL and KCL
KVL stands for Kirchhoff voltage law. KVL states that the total voltage drops around the loop in any closed electric circuit is equal to the sum of total voltage drop in the same closed loop.
Sign Convention
Science and technology incorporate some ideas and techniques of their own to understand a system skilfully and easily. These techniques are called conventions. For example: Sign conventions of mirrors are used to understand the phenomenon of reflection and refraction in an easier way.
Refer to the diagram in the problem, the value of the voltage, v+ is given by:
The current flowing through the resistor, Ro is given by:
The voltage across the terminals dc is determined as:
To calculate the equivalent resistance across the terminals dc, the independent voltage source will be short-circuited. Then, the circuit is excited by 1 A current source across the terminals dc. Consider the voltage at the terminal, d is vth.
The circuit diagram is given as:
Apply Kirchhoff’s current law at the terminal, b.
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