If the voltage rather than the current is kept constant, what happens as the temperature increases from
Question:
(a) At first the current increases, then it decreases.
(b) The current increases.
(c) The current decreases, eventually approaching zero.
(d) The current does not change unless the voltage also changes.
The currentvoltage characteristics of a forwardbiased p-n junction diode depend strongly on temperature, as shown in the figure. As a result, diodes can be used as temperature sensors. In actual operation, the voltage is adjusted to keep the current through the diode constant at a specified value, such as 100 mA, and the temperature is determined from a measurement of the voltage at that current.
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Related Book For
University Physics with Modern Physics
ISBN: 978-0133977981
14th edition
Authors: Hugh D. Young, Roger A. Freedman
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