An ionized gas is called a plasma
Indicate whether the statement is true or false
T
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Why do many people think stars are not in the sky during the daytime?
What will be an ideal response?
The difference between donor and acceptor atoms in a doped semiconductor is that
a. the donor energy level lies halfway between the valence band and the acceptor level. b. the donor energy level lies near the valence band and the acceptor energy level lies near the conduction band. c. donor energy levels cannot exist unless acceptor energy levels are present. d. the donor energy level lies near the conduction band and the acceptor energy level lies near the valence band. e. the acceptor energy level lies halfway between the conduction band and the donor energy level.
When a fast neutron collides with a hydrogen or deuterium nucleus, the most likely result is that
a. the neutron has an appreciable gain in kinetic energy, the gain being greatest for head-on collisions. b. the neutron has an appreciable gain in kinetic energy, the gain being greatest for oblique collisions. c. the neutron has an appreciable loss in kinetic energy, the loss being greatest for head-on collisions. d. the neutron has an appreciable loss in kinetic energy, the loss being greatest for oblique collisions. e. the neutron is absorbed by the hydrogen or deuterium nucleus.
The graphs below show the phasors ?Vmax and Imax for five RLC series circuits. The solid arrows represent the voltage phasors, ?V, and the dashed arrows represent the current phasors, Imax. Which graph represents a circuit where the capacitive reactance is greater than the inductive reactance?
A.
B.
C.
D.
E.
