What type of components do not amplify signals in a circuit?

The correct answer is passive components. Passive components are those that do not have the ability to amplify electrical signals within a circuit. Instead, they can only dissipate, store, or release energy. Common examples of passive components include resistors, capacitors, and inductors. These components rely on the energy supplied by active components, such as batteries or power sources, but do not contribute any additional energy or amplification to the circuit.

Active components, on the other hand, are capable of amplifying signals and require an external power source to operate. This category includes transistors and operational amplifiers, which actively control the flow of electrical energy.

Within the context of the question, resistors, while being a type of passive component themselves, do not amplify signals since they simply impede current flow, dissipating energy as heat rather than increasing the power of the signal.