Which of the following is not a characteristic of an electrostatic intrusion detection system?
A.
It creates an electrostatic field and monitors for a capacitance change.
B.
It can be used as an intrusion detection system for large areas.
C.
It produces a balance between the electric capacitance and inductance of an object.
D.
It can detect if an intruder comes within a certain range of an object.
Explanation:
B: An electrostatic IDS creates an electrostatic field, which is just an electric field associated with static electric charges. The IDS creates a balanced electrostatic field between itself and the object being monitored. If an intruder comes within a certain range of the monitored object, there is capacitance change. The IDS can detect this change and sound an alarm.