_____, r____~ -“1 ,_,__,,.__.. __-.. v _. 1..-...1_v__~. Multiple-choice questions may continue on

the next column or page — ﬁnd all choices

before answering. 001 (part 1 of 2) 10.0 points

When a particular inductor is connected to a

sinusoidal voltage with a 204 V amplitude, a

peak current of 1.5 A appears in the inductor.

What is the maximum current if the fre-

quency of the applied voltage is doubled?

Answer in units of A. 002 (part 2 of 2) 10.0 points

What is the inductive reactance at the new

frequency?

Answer in units of Q. 003 10.0 points

A variable-frequency AC generator with max—

imum voltage 53 V is connected across a

8.4 x 10'8 F capacitor. At what frequency should the generator be

operated to provide a maximum current of

6.2 A? Answer in units of Hz. 004 (part 1 of 5) 10.0 points In a series RLC AC circuit, the resistance

is 9.15 {2, the inductance is 29.2 mH, and

the capacitance is 19.2 “F. The maximum

potential is 94.4 V, and the angular frequency

is 636.62 rad/s. Calculate the maximum current in the cir-

cuit. Answer in units of A. 005 (part 2 of 5) 10.0 points

Determine the maximum voltage across the

resistor. Answer in units of V. 006 (part 3 of 5) 10.0 points

Determine the maximum voltage across the

inductor. Answer in units of V. 007 (part 4 of 5) 10.0 points

Determine the maximum voltage across the “'1' -.-_1-_ . Answer in units of V. 008 (part 5 of 5) 10.0 points

What is the power factor for the circuit? 009 10.0 points

Calculate the resonance frequency of a

ries RLC circuit for which the capacitanc

70 pF, the resistance is 52 k9, and the inc

tance is 112 mH.

Answer in units of Hz. 010 10.0 points

The speed of light is 3 x 108 m/s.

What is the frequency of a 1 cm microwa

Answer in units of GHZ. 011 10.0 points

The speed of light is 3 x 108 m/s.

What is the frequency of an X—ray wit

wavelength of 1.4 nm?

Answer in units of Hz. 012 (part 1 of 2) 10.0 points

The magnetic ﬁeld amplitude of an elec

magnetic wave is 4.2 x 10‘6 T.

The speed of light is 2.99792 X 108 m/s

Calculate the amplitude of the electric f

if the wave is traveling in free space.

Answer in units of N / C. 013 (part 2 of 2) 10.0 points

Calculate the amplitude of the electric f

if the wave is traveling in a medium in WI

the speed of the wave is 0.7 0. Answer in units of N / C. 014 10.0 points The distance from the Earth to Polari;

approximately 6.12 x 1018 m. The speed of light is 2.99792 X 108 m / s. If the North Star Polaris were to burn

today, in how many years would it disapr

from our vision? Answer in units of years. 015 10.0 points