Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R:

Assertion (A): Power MOSFETs have a positive temperature coefficient, which combats the possibility of thermal runaway

Reason (R): Negative temperature coefficient results in decreased level of resistance with increase in temperature and causes thermal runaway

In the light of the above statements, choose the correct answer from the options given below:

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Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R:

Assertion (A): Power MOSFETs have a positive temperature coefficient, which combats the possibility of thermal runaway

Reason (R): Negative temperature coefficient results in decreased level of resistance with increase in temperature and causes thermal runaway

In the light of the above statements, choose the correct answer from the options given below:

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UGC NET Paper 2: Electronic Science 29 Oct 2022 Shift 1

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Both (A) and (R) are true and (R) is the correct explanation of (A)
Both (A) and (R) are true but (R) is not the correct explanation of (A)
(A) is true but (R) is false
(A) is false but (R) is true

Answer 1

व्याख्या:

MOSFET एक तीन-टर्मिनल (गेट, अपवाह और स्रोत) पूरी तरह से नियंत्रित स्विच है। गेट/नियंत्रक सिग्नल गेट और स्रोत के बीच होता है, और इसके स्विच टर्मिनल अपवाह और स्रोत हैं।

668

गेट स्वयं धातु से बना होता है, स्रोत से अलग होता है, और धातु ऑक्साइड का उपयोग करके अपवाह बनाता है। यह कम शक्ति की खपत की अनुमति देता है और ट्रांजिस्टर को इलेक्ट्रॉनिक स्विच या सामान्य-स्रोत प्रवर्धक के रूप में उपयोग के लिए एक बढ़िया विकल्प बनाता है

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