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

You can do it
  1. Carbon tetrachloride fire extinguisher should not be used in closed room because it produces poisonous…
  2. The oxide of Nitrogen used in medicine as anaesthetic is
  3. Earth's seasons are caused by which of the following?
  4. The most important ore of Aluminium is
  5. Which of the following is commonly called a polyamide ?
  6. When a gas is turned into a liquid, the process is called
  7. The metal that is present in Photo Films is
  8. The marine animal called dugong which is vulnerable to extinction is a/an
  9. Quartz crystals normally used in quartz clocks etc. is chemically
  10. In an atomic nucleus, neutrons and protons are held together by
  11. Which of the following characters is not shown by hydrogen
  12. The solar eclipse occurs when
  13. Epoxy resins is used as
  14. Liquefied Petroleum gas (LPG) consists of mainly
  15. The colour of Emerald is
  16. Old-written material, which cannot be read easily can be read by
  17. Which of the following elements is non-radioactive?
  18. Brass gets discoloured in air due to the presence of which gas in air
  19. Which of the following elements is obtained from sea weeds ?
  20. The speed of light with the rise in the temperature of the medium
  21. Which of the following is most likely to cause a rise in the average temperature of earth's atmosphere…
  22. Nitrification means
  23. The accumulation of stress along the boundaries of lithospheric plates results in which of the following?
  24. Pollination by birds is called
  25. The metal used in storage batteries
  26. Which of the following is the lightest metal ?
  27. The property of a substance to absorb moisture from the air on exposure is called
  28. Lightening cause rainfall because
  29. The type of glass used in making prisms and lenses is
  30. The formula of Plaster of Paris is