Now, power dissipated in load resistance R L due to this current I is the power delivered from source to load. The current I through the circuit is given as below. Let us first calculate the current through the load resistance R L. Let us now apply the above concept and derive the maximum power transfer theorem. This concept may be followed to get the proof of the theorem This will give us the value of R L for which maximum power will flow from source to load. Now, we will differentiate this power P with respect to R L (as R L is a variable quantity) and equate it to zero. Then, power (P) dissipated in the load resistance is equal to the I 2R L i.e. Maximum Power Transfer Theorem Derivation:įor maximum power transfer theorem derivation, first of all we will calculate the current flowing through the circuit.
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