Question

What will happen if the strip in a doorbell loses its flexibility?

• A. Striker may break if current is large.
• B. After hitting the metal gong, it never returns to original position and only a single sound is produced.
• C. System of doorbell breaks
• D. Both A and B

Answer 1

The correct option is D Both A and B

Because of lack of flexibility, striker will resist change of motion more and may break if current is large.

Without flexibility, no rebounding force is present and striker will not return to its original position.