A simple electric doorbell probably uses ________ to ring the bell.

Question

Quizplus · Accepted Answer

An electric doorbell likely uses an electromagnet to ring the bell. When the button is pressed, electrical current flows through the electromagnet, creating a magnetic field that attracts a metal striker to hit the bell and create sound. A DPDT switch and transistor are components often used in more complex electronic circuits, but a simple doorbell would not require them. A permanent magnet would not be able to create the necessary electromagnetism to ring the bell.

A Simple Electric Doorbell Probably Uses ________ to Ring the Bell