Electrical Bell Science Experiments Vertical Acoustic School Physics Teaching Experiment for Junior Senior High School

Connect the electric bell to a DC 3~6V power supply.When the electromagnet is energized, it is magnetic. The armature is sucked down to make contact with the dynamic and static contacts. The electric bell uses the magnetic effect of current to work. When the circuit is powered on, the electromagnet is energized, which attracts the reed. When the reed moves towards the magnet, the hammer strikes the iron bell and makes a sound. At the same time, the moving piece and the static piece are in contact, and the current no longer passes through the electromagnet. , Directly through the circuit to form a circuit. When the electromagnet does not pass through the current, the reed is not attracted, and it will automatically bounce back to its original place under the action of elastic force. The moving piece is out of contact with the static piece, and the current passes through the electromagnet again to form a loop. The electromagnet starts to work again to attract the reed, and the hammer strikes the iron bell again.So it started again, and the electric bell was constantly ringing. Product parameters

Name: Electric bell

Material: pvc

First, the use： For the teaching of physical sciences in middle schools with standard experimental textbooks for compulsory education curricula. Second, the structure： The product is made of plastic and consists of an electromagnet, an armature, an iron bell, a liner and a base. 3. Maintenance and maintenance： 1. The instrument coil is wound with high-strength enameled wire. Care should be taken to protect the insulation when using it to avoid short circuits between turns affecting the experimental results. 2. The instrument is made of plastic. Do not approach organic solvents and do not wipe with hard objects to avoid scratching the surface of the product. 3. After use, please put it in a cool and dry place. Do not store it in a humid acid-base environment to avoid rust and corrosion of the product. Operation instructions

Packing list

Electric bell*1 Cable*2