Physics-
General
Easy

Question

A source voltage of 8V drives the diode in fig. through a current-limiting resistor of 100 ohm. Then the magnitude of the slope load line on the V-I characteristics of the diode is

  1. 0.01    
  2. 100    
  3. 0.08    
  4. 12.5    

The correct answer is: 0.01


    If i is the current in the diode and V is voltage drop across it, then for given figure voltage equation is
    i cross times 100 plus V equals 8Þi equals negative fraction numerator 1 over denominator 100 end fraction V plus fraction numerator 8 over denominator 100 end fractionÞi equals negative left parenthesis 0.01 right parenthesis V plus 0.08
    Thus the slope of i-V graph equals fraction numerator 1 over denominator R subscript L end subscript end fraction equals 0.01

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