Recent content by ap1993

  1. A

    How Does an AND Gate Determine Its Output?

    4.When A = 1, B = 1 none of diodes conduct and so no current flows through R. The potential at C is equal to potential at D which is +5V with respect to earth. Hence output Y is 1. How?
  2. A

    How Does an AND Gate Determine Its Output?

    The AND gate 1. When A = 0 and B = 0 both diode D1 and D2 get forward biased and hence conduct. The diodes being ideal, no voltage drop takes place across either diode. Therefore potential difference of 5V takes place across R, with C at zero potential with respect to earth. Thus the...
  3. A

    What Does the Negative Sign in the Electrostatic Potential V Formula Represent?

    thanks-i got it!
  4. A

    What Does the Negative Sign in the Electrostatic Potential V Formula Represent?

    See this page: http://teacher.nsrl.rochester.edu/phy122/Lecture_Notes/Chapter25/Chapter25.html#Heading1" Why is there a negative sign in the formula for electrostatic potential V?
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