How does increasing the temperature affect a semiconductor?
c.
With the temperature increased, more and more electrons are close to being excited into the conduction band and participating in the electrical and thermal conduction processes within the semiconductor.
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Gauss's Law: The figure shows four Gaussian surfaces surrounding a distribution of charges.(a) Which Gaussian surfaces have an electric flux of +q/?o through them?(b) Which Gaussian surfaces have no electric flux through them?
What will be an ideal response?
Why do stars twinkle?
A. due to their movement across the sky B. due to the refraction caused by atmospheric irregularities C. due to rapid changes occurring on their surfaces D. due to imperfections in the human eye
The electric resistance of a superconductor is
A) zero. B) infinite. C) usually lower than ordinary resistors. D) none of the above
Consider the following three items
A. 100 g of steam on the Moon B. 10 g of water on the Earth C. 20 g of ice floating in water on the Earth Put these items in order of increasing mass:
1.A < B < C 2.A < C < B 3.B < A < C 4.B < C < A 5.C < A < B 6.C < B < A 7.None of the above 8.Impossible to determine