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प्रश्न
The graph shown in the figure represents a plot of current versus voltage for a given semiconductor. Identify the region, if any, over which the semiconductor has a negative resistance.

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उत्तर
Resistance of a material can be found out by the slope of the curve V vs. I. Part BC of the curve shows the negative resistance as with the increase in current, voltage decreases.
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संबंधित प्रश्न
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Consider a box with three terminals on top of it as shown in figure (a):
![]() (a) |
Three components namely, two germanium diodes and one resistor are connected across these three terminals in some arrangement. A student performs an experiment in which any two of these three terminals are connected in the circuit shown in figure (b).
![]() (b) |
The student obtains graphs of current-voltage characteristics for unknown combination of components between the two terminals connected in the circuit. The graphs are
(i) when A is positive and B is negative
![]() (c) |
(ii) when A is negative and B is positive
![]() (d) |
(iii) When B is negative and C is positive
|
(e) |
(iv) When B is positive and C is negative
![]() (f) |
(v) When A is positive and C is negative
![]() (g) |
(vi) When A is negative and C is positive
![]() (h) |
From these graphs of current-voltage characteristics shown in figure (c) to (h), determine the arrangement of components between A, B and C.
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breakdown voltage in reverse biasing
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