Question

For an energy signal __________

(a) E=0

(b) P= ∞

(c) E= ∞

(d) P=0

This question was addressed to me during an interview.

This intriguing question originated from Signal Classification and Properties in division Signals and Systems Basics of Signals and Systems

Answer 1

The correct option is (d) P=0

To elaborate: A signal is called an energy signal if the energy satisfies 0<E< ∞ and power P=0.