Study for the Internet of Things (IOT102) Test. Access comprehensive flashcards and multiple choice questions, each with hints and explanations. Get prepared for your exam!

Multiple Choice

Which measure reduces the generation of heat inside a computer?

Heat inside a computer comes from power that’s dissipated as heat by resistive elements. The power that gets turned into heat is proportional to the voltage squared across a component (P = V^2 / R) or to the current squared times resistance (P = I^2R). By reducing the voltage from the power supply, you lower the current drawn by the components and, in turn, cut the amount of heat generated at the source. This is the most direct and effective way to lessen heat production without compromising how the system operates. Increasing the physical size of resistors doesn’t reduce heat generation; it helps the component tolerate more heat but doesn’t lower the actual power being dissipated. Increasing the total resistive value in the circuit reduces current, but it can prevent components from receiving the power they need to function correctly, leading to other problems. Using capacitors on the output of the power supply smooths voltage but doesn’t inherently reduce the total heat being produced.

Heat inside a computer comes from power that’s dissipated as heat by resistive elements. The power that gets turned into heat is proportional to the voltage squared across a component (P = V^2 / R) or to the current squared times resistance (P = I^2R). By reducing the voltage from the power supply, you lower the current drawn by the components and, in turn, cut the amount of heat generated at the source. This is the most direct and effective way to lessen heat production without compromising how the system operates.

Increasing the physical size of resistors doesn’t reduce heat generation; it helps the component tolerate more heat but doesn’t lower the actual power being dissipated. Increasing the total resistive value in the circuit reduces current, but it can prevent components from receiving the power they need to function correctly, leading to other problems. Using capacitors on the output of the power supply smooths voltage but doesn’t inherently reduce the total heat being produced.