Describe the schematic symbols for push buttons.
What will be an ideal response?
A very common schematic symbol is the push button. Normally open push buttons are shown with the movable contact above and not touching the two stationary contacts. The symbol indicates that when finger pressure is applied to the movable contact, it travels downward and bridges the gap between the two stationary contacts. Normally closed push button symbols are drawn with the movable contact below and touching the stationary contacts. When pressure is applied to the movable contact it travels downward and breaks the connection between the two stationary contacts. Another very common push button symbol is the double acting push button. Double acting push buttons contain both normally open and normally closed contacts with one movable contact.
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