The formula to calculate the Total Power is:
\[ \text{Pt} = I^2 \cdot R1 + I^2 \cdot R2 + I^2 \cdot R3 \]
Where:
Total Power is the sum of the power dissipated by each resistor in a circuit. It is calculated by summing the power contributions from each resistor, which are determined by the square of the current multiplied by the resistance.
Example 1:
Using the formula:
\[ \text{Pt} = 2^2 \cdot 5 + 2^2 \cdot 3 + 2^2 \cdot 2 = 4 \cdot 5 + 4 \cdot 3 + 4 \cdot 2 = 20 + 12 + 8 = 40 \text{ watts} \]
Example 2:
Using the formula:
\[ \text{Pt} = 1.5^2 \cdot 4 + 1.5^2 \cdot 2 = 2.25 \cdot 4 + 2.25 \cdot 2 = 9 + 4.5 = 13.5 \text{ watts} \]
