Electronics - Diodes and Applications - Discussion

Discussion Forum : Diodes and Applications - General Questions (Q.No. 3)
3.
What circuit activity may shift a characteristic curve so that diode operating points are different?
higher power (heat)
higher resistance
lower voltage
lower current
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
9 comments Page 1 of 1.

Jitendra prajapat(SETG) said:   10 years ago
We know that semiconductor has a negative temperature coefficient characteristics So, due to the increase in temperature there is a increase in current, which results in getting the different Operating Point (i.e Q point).

Rajasekhar said:   1 decade ago
The total value of collector current is given by collector current+reverse saturation current. For every 10 degree raise in temp the reverse saturation current doubles thereby increasing the collector current. As the collector current increases the diode operating point shifts towards breakdown region which in turn increases the temperature and continuing the above process (early effect).

Alok kumar said:   1 decade ago
The semiconductor such silicon, germanium NTC (Negative Temperature Coefficient).

Rakesh mahadev said:   1 decade ago
The semiconductor devices has negetive temp. Coefficient.

Ranjith sundar said:   1 decade ago
Even diode is a nonlinear device it has a voltage range of 0.5-0.7volt. This can be varied by means of high temperature.
(1)

Ashis Kumar Patra said:   1 decade ago
At a rise of 10 degrees of temperature the reverse saturation current increases a twice. So, due to the increase in current there is a increase in voltage, which results in getting the different Operating Point(i.e Q point).

Karthi ish said:   1 decade ago
The diode characteristics differ due to temperature.

Jitendra said:   1 decade ago
Because of heat the temprature of junction increases i.e reverse saturation current hence total forward current which shifts the q point.

Ksumathi said:   1 decade ago
The forweard voltage for the diode shifts due to heat

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