If an R = 1.0-k resistor, a C = 1.0-F capacitor, and an L = 0.20-H inductor are connected in series with a V = 150 sin (377t) volts source, what is the maximum current delivered by the source?
a. 0.007 0 A
b. 27 mA
c. 54 mA
d. 0.31 A
e. 0.34 A
[Ques. 2] The apparent motion of an object when it is viewed from two different positions against a fixed background is called
a. Hubble's effect.
b. parallax.
c. paradox.
d. Brighton's effect.
[Ques. 3] When an electron in an atom falls from a higher energy level to a lower one, a ______________ is ______________.
a. proton; absorbed
b. proton; emitted
c. photon; absorbed
d. photon; emitted
[Ques. 4] The voltage 8.00 sin (400t) is applied to a series RLC circuit, with R = 200 , L = 0.100 H, and C = 1.00 F. What are the impedance Z and the phase angle ?
a. 200 , 37.0
b. 566 , +87.0
c. 2 470 , 85.4
d. 2 540 , 88.8
e. 393 , 63.0
[Ques. 5] Which of the following represents the shortest distance?
a. One parsec
b. One astronomical unit
c. One light-year
d. One right ascension
[Ques. 6] Fluorescence occurs when samples of some materials are exposed to rays of which EMR region?
a. Ultraviolet
b. Infrared
c. Visible
d. Microwave
[Ques. 7] Find the resonant frequency for a series RLC circuit where R = 10, C = 5.00 F, and L = 2.00 mH.
a. 998 Hz
b. 1.59 kHz
c. 2.45 kHz
d. 11.3 kHz
e. 2.53 kHz
[Ques. 8] Which of the following represents the longest distance?
a. One parsec
b. One astronomical unit
c. One light-year
d. One right ascension
[Ques. 9] The lines in the visible region of the hydrogen spectrum arise from transitions from higher levels back to the level where n equals
a. 3.
b. 1.
c. 2.
d. 4.
[Ques. 10] The inductance of a tuning circuit of an AM radio is 4.00 mH. Find the capacitance of the circuit required for reception at 1 200 kHz.
a. 2.10 pF
b. 4.40 pF
c. 21.2 pF
d. 43.4 pF
e. 27.6 pF
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