Maximum Power Transfer Theorem

Maximum Power Transfer Theorem

### Formula

$$R=r$$

### Maximum Power

$$P_{max}=\frac{E^2}{4r}$$

### Terminologies

- R → External resistance.

- r → Internal resistance.

- E → EMF.

### Conditions / Special Cases

Maximum power is transferred when:

$$External\ resistance=Internal\ resistance$$

### Usage

- Used in electrical circuit optimization.