There is a little motor fitted in a cell phone. This motor has unbalanced weight, in other words, is unevenly weighted on its output shaft. When this motor rotates, the rotating uneven weight causes the mobile to vibrate. A similar mechanism is also present in gaming devices such as the play station.
Home » Kids Questions & Answers » Science & Mathematics Questions & Answers » How does a mobile vibrate?
Message signals may be required to transmit over a distance, and we know this process …