The sensor on a door for a home security system consisted of a small coil of wire embedded in the doorframe, and a small steel disk on

Question

The sensor on a door for a home security system consisted of a small coil of wire
embedded in the doorframe, and a small steel disk on the door opposite the coil.
When the door was opened, what characteristic of the coil changed for the home
security system?

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Trúc Chi 1 year 2021-09-01T08:57:13+00:00 1 Answers 0 views 0

Answers ( )

  1. diemthu
    0
    2021-09-01T08:59:08+00:00
    Reply

    Answer:

    Probably electromagnetism

    Explanation:

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