The effective density of the energy levels in the valence band- when the temperature decreases
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Q: Ex. 125 A body cools from 75°C to 55°C in 10 min when the temperature of the surrounding is 31 °C, a...
A: To find- Average temperature Given- θ1=750Cθ2=550Ct=10 minθ0=310C
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A: The time period of a wave is the time for a particle in a medium to make one complete vibration. Rel...
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A: where R is the radius of earth.
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A: Basic problem from electronics. Please have a good look
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A: To find the entire x-axis for this graph, just break it into two equal parts, and then, again and ag...
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A: Given, Subject mass, ms=70kg Resistance, R= 2kg Speed=50RPM Total time, t=30min The total work= R×sp...
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A: As per the answering guidelines, we are supposed to answer only the first question unless not mentio...
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A: Given: S=990 MVA V=25 kV ϕ=0.9 f= 60 Hz
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Q: Three point charges are lined up on a straight line. The charge q3 = +2 nC is at the origin, the cha...
A: To answer: The magnitude and charge on q1
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Q: A man is using concave meror for shaving. If the his face is 10cm form the mirror having magnificati...
A: The magnification is determined from the ratio of image distance to that of the object distance.
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A: The charge Q=2.2 nC is spread uniformly on the entire rod of length L=1.2 m. The linear charge dens...
Q: 3. When a certain spring is expanded 10cm from its natural position and held fixed, the force necess...
A: Given, Elongation, x=10 cm Force, F=4.5×106dyne According to Hooke's law, F=kx4.5×106=k10k=4.5×105dy...
Q: The figure gives the magnitude of the electric field inside and outside a sphere with a positive cha...
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