What occurs to energy when frequency is beyond a circuit's bandwidth?

When frequency exceeds a circuit's bandwidth, the energy associated with those high-frequency signals typically cannot be processed or transmitted effectively by the circuit. This results in the energy being dissipated or lost.

In electrical circuits, bandwidth refers to the range of frequencies that can be effectively transmitted or processed. When a signal's frequency is above this range, it cannot be properly handled by the circuit components. This inability to transfer high-frequency components can manifest as a decrease in signal strength or fidelity, leading to energy loss. Thus, it's accurate to state that energy is lost when the frequency is beyond a circuit's bandwidth.

In contrast, filtering typically describes the process of attenuating or removing specific frequencies within the usable bandwidth, rather than losing them entirely. Similarly, enhancing or reflecting energy relates to specific circuit designs intended to boost or redirect signals, which does not characterize the inherent behavior when operating beyond the bandwidth.