Final answer:
The statement is false; power dissipation is the conversion of electrical energy to other forms such as heat, not just the voltage drop across a resistance.
Step-by-step explanation:
The statement that the decrease in voltage due to a loss of energy across a resistance is called power dissipation is false. Power dissipation refers to the energy converted from electrical energy to another form, typically heat, as it passes through a resistor. This energy transformation is described by the formula P = IV, where P is power, I is current, and V is voltage. Alternatively, power dissipation can be calculated as P = V2/R or P = I2R, where R is resistance. While the voltage does drop across a resistor, this drop signifies a loss of electrical potential energy, not power dissipation directly. Power dissipation is related to the voltage drop as it reveals how much energy per unit time is being converted to heat (or other forms of energy) as the electrical current encounters resistance.