अधिकतम शक्ति हस्तांतरण प्रमेय (Maximum Power Transfer Theorem) के अनुसार, एक डीसी (DC) स्रोत से विशुद्ध रूप से प्रतिरोधी लोड तक अधिकतम शक्ति हस्तांतरण की सही स्थिति क्या है?

While calculating Thevenin resistance (Rth) or Norton resistance (RN), independent constant current sources in the circuit are:

While calculating Thevenin resistance (Rth), constant current sources in the circuit are:

According to the Maximum Power Transfer Theorem, maximum power is delivered from a source to a load when the load resistance (RL) is equal to the internal resistance (r) of the source. At this specific condition, what is the efficiency of the power transfer?