In a certain electronic circuit the output is positive if input 1 is positive and input 2 is zero. If both inputs are positive the output is zero. This is

A. an AND circuit

B. an OR circuit

C. a high-pass filter

D. a NOR circuit

Please do not use chat terms. Example: avoid using "grt" instead of "great".

You can do it
  1. Which of the following is commonly called a polyamide ?
  2. What is the unit for measuring the pitch or frequency of sound ?
  3. The type of glass used in making prisms and lenses is
  4. The accumulation of stress along the boundaries of lithospheric plates results in which of the following?
  5. The smallest functional and structural unit of kidney is called as
  6. Epoxy resins is used as
  7. The colour of Emerald is
  8. When a gas is turned into a liquid, the process is called
  9. Permanent hardness of water can be removed by adding
  10. The speed of light with the rise in the temperature of the medium
  11. One fathom is equal to
  12. Which of the following items will be attracted to the north pole of a permanent magnet by a magnet force?
  13. Which of the following is most likely to cause a rise in the average temperature of earth's atmosphere…
  14. According to Daltons atomic theory the smallest particle which can exist independently is
  15. Polythene is industrially prepared by the polymerisation of
  16. The fastest acting enzyme in the biological kingdom is
  17. Liquefied Petroleum gas (LPG) consists of mainly
  18. The chemial name of Uria is
  19. Quartz crystals normally used in quartz clocks etc. is chemically
  20. Earth's seasons are caused by which of the following?
  21. The solar eclipse occurs when
  22. Nitrification means
  23. The Panda belongs to the same family as that of
  24. The element present in the largest amount in rocks and minerals is
  25. The marine animal called dugong which is vulnerable to extinction is a/an
  26. The fastest-running terrestrial animal is
  27. Permanent hardness of water, due to sulphates of the metal, can be destroyed by the use of
  28. Carbon tetrachloride fire extinguisher should not be used in closed room because it produces poisonous…
  29. Which of the following elements is non-radioactive?
  30. The major ingredient of leather is