A series LC circuit contains a 100 mH inductor, a 36.0 mF capacitor and a 12 V battery. The period of the electromagnetic oscillations in the circuit is
a. 0.0227 s.
b. 0.377 s.
c. 2.26 s.
d. 105 s.
e. 1750 s.
[Ques. 2] The next phase in the life cycle of the Sun will be
a. the formation of a red giant.
b. a move to the main sequence.
c. collapse to a white dwarf.
d. a supernova explosion.
[Ques. 3] Doubling the wavelength of a photon would ______________ its energy.
a. halve
b. double
c. quadruple
d. not change
[Ques. 4] A series LC circuit contains a 100 mH inductor, a 36.0 mF capacitor and a 12 V battery. The frequency of the electromagnetic oscillations in the circuit is
a. 5.73 104 Hz.
b. 9.55 103 Hz.
c. 0.442 Hz.
d. 2.65 Hz.
e. 44.0 Hz.
[Ques. 5] The Sun has been on the main sequence
a. for about 10 million years.
b. for about 5 billion years.
c. forever.
d. for about 14 billion years.
[Ques. 6] The smaller the frequency of light, the smaller the ______________ of its photons.
a. wavelength
b. speed
c. mass
d. energy
[Ques. 7] A series LC circuit contains a 100 mH inductor, a 36.0 mF capacitor and a 12 V battery. The angular frequency of the electromagnetic oscillations in the circuit is
a. 36.0 104 rad/s.
b. 6.00 102 rad/s.
c. 2.78 rad/s.
d. 16.7 rad/s.
e. 277 rad/s.
[Ques. 8] The Sun will finally become a
a. brown dwarf.
b. neutron star.
c. black hole.
d. white dwarf.
[Ques. 9] With which object would the wave nature of matter be significant?
a. A hard-thrown baseball
b. A speeding truck
c. A moving electron
d. An orbiting planet
[Ques. 10] What is the inductance of a series RL circuit in which R = 1.0 K if the current increases to one-third of its final value in 30 s?
a. 74 mH
b. 99 mH
c. 49 mH
d. 62 mH
e. none of the above
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