Switches are of many types and are used depending upon the device.
True
It is true. The usage of switch depends on the type of device you are going to operate. For an example, a bell works on pressure switch, while fan, light works on one way switch. One way switch remains either on ON or OFF at a time.While, the pressure switch is pressed it turns ON the bell, and when the pressure on it is removed, the bell comes in OFF condition.