The number of LEDs required to display all the digits is:
Correct answer: A. Seven
- A. Seven
- B. Five
- C. Six
- D. Eight
Explanation
Light Emitting Diode (LED) is the most widely used semiconductor which emits either visible light or invisible infrared light when forward biased. Remote controls generate invisible light. A Light-emitting diode (LED) is optical-electrical energy into light energy when voltage is applied.Seven segment displays are the output display device that provides a way to display information in the form of images or text or decimal numbers which is an alternative to the more complex dot matrix displays. It is widely used in digital clocks, basic calculators, electronic meters, and other electronic devices that display numerical information. It consists of seven segments of light-emitting diodes (LEDs) which are assembled like numerical 8.
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