Applied Physics (11th Edition)
11th Edition
ISBN: 9780134159386
Author: Dale Ewen, Neill Schurter, Erik Gundersen
Publisher: PEARSON
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Textbook Question
Chapter 20.3, Problem 5P
c=3.00×108m/s
f=45.6 MHz
λ=?
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៥.កុងឌុចតង់
mhos(Q)
កុងឌុចតង់ជារង្វាស់ភាពចម្លងនៃសារធាតុមួយ។គេតាងដោយG។វាត្រូវបានវាស់ជា
y siemens (S) 1G= ។ចម្រាសនៃរេស៊ីស្ទីវីតេហៅថា កុងឌុចទីវីតេច = = (Sm") ។
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លំហាត់
២.ខ្សែទង់ដែងមួយមានអង្កត់ផ្ចិត1cm និងរេស៊ីស្តង់ 0.15.2 ។គេយកខ្សែនេះទៅ ហូត(ពន្លូត)
យ៉ាងណាអោយអង្កត់ផ្ចិតវាថយចុះ50%នៃអង្កត់ផ្ចិតដើម។គណនារេស៊ីស្តង់ថ្មី។
៣.គណនារស៊ីស្តង់ទង់ដែងមួយមានមាឌ 1m3។ p = 1.6x10) “Qn
ក.នៅពេលគេហូតខ្សែនេះអោយមានអង្កត់ផ្ចិត 0.32mm។
ខ.នៅពេលគេដំខ្សែនេះទៅជាបន្ទះរាងការដែលមានកំរាស់1.2mm។ចរន្តឆ្លងពីមុខកាត់មួយមុខ
កាត់មួយ។
4.ខ្សែ
Problem 4. Calculate the resistance of a 2 km length of
aluminium overhead power cable if the cross-sectional area of
the cable is 100 mm². Take the resistivity of aluminium to be
0.03 x 1()6 Km
រូបវិទ្យាសំរាប់វិស្វករ
Problem 7. Determine the resistance of 1200 m of copper cable
having a diameter of 12 mm if the resistivity of copper is
1.7 x 10–8 Km
៦.មេគុណសីតុណ្ហភាពនស៊ីស្តង់ (Temperature Co-efficient of Resistance)
♥ បើ R, , ,…
QUESTION 8
Consider light having a wavelength of 521 nm traveling in a vacuum. Which of the following is true?
w = 1.56x102 rad/s
w = 5.74x105 rad/s
O k = 3.27x10-6 rad-m
O k = 1.21x107 rad/m
Chapter 20 Solutions
Applied Physics (11th Edition)
Ch. 20.2 - Find the distance (in metres) traveled by a radio...Ch. 20.2 - Prob. 2PCh. 20.2 - A television signal is sent to a communications...Ch. 20.2 - How long does it take for a radio signal from the...Ch. 20.2 - The sun is 9.30107mi from the earth. How long does...Ch. 20.2 - A radar wave is bounced off an airplane and...Ch. 20.2 - How long does it take for a radio wave to travel...Ch. 20.2 - How long does it take for a flash of light to...Ch. 20.2 - How long does it take for a police radar beam to...Ch. 20.2 - How far away (in km) is an airplane if the radar...
Ch. 20.2 - An auto mechanic uses a strobe light to time a...Ch. 20.2 - A construction company uses GPS technology to...Ch. 20.2 - (a) How long does it take for light to reach the...Ch. 20.2 - Prob. 14PCh. 20.2 - How long does it take light to reach the earth...Ch. 20.2 - Preparing for reentry, astronauts use radar to...Ch. 20.2 - Prob. 17PCh. 20.2 - Light from the sun travels 1.50108 km to reach the...Ch. 20.3 - c=3.00108m/s =4.55105m f=?Ch. 20.3 - c=3.00108m/s =9.701010m f=?Ch. 20.3 - c=3.00108m/s f=9.701011Hz =?Ch. 20.3 - c=3.00108m/s f=24.2 MHz =?Ch. 20.3 - c=3.00108m/s f=45.6 MHz =?Ch. 20.3 - Prob. 6PCh. 20.3 - Prob. 7PCh. 20.3 - Prob. 8PCh. 20.3 - Find the wavelength of a radio wave from an AM...Ch. 20.3 - Find the wavelength of a radio wave from an FM...Ch. 20.3 - Find the frequency of an electromagnetic wave if...Ch. 20.3 - Find the frequency of an electromagnetic wave if...Ch. 20.3 - Prob. 13PCh. 20.3 - Prob. 14PCh. 20.3 - Prob. 15PCh. 20.3 - An AM radio station broadcasts a signal with a...Ch. 20.4 - Prob. 1PCh. 20.4 - Prob. 2PCh. 20.4 - Prob. 3PCh. 20.4 - Find the frequency of electromagnetic radiation...Ch. 20.4 - Find the frequency of electromagnetic radiation...Ch. 20.4 - Prob. 6PCh. 20.4 - Find the frequency of electromagnetic radiation...Ch. 20.4 - Prob. 8PCh. 20.4 - Prob. 9PCh. 20.4 - Prob. 10PCh. 20.4 - Prob. 11PCh. 20.4 - Prob. 12PCh. 20.4 - An AM radio station in a nearby town broadcasts a...Ch. 20.5 - I=48.0 cd I=___mCh. 20.5 - Prob. 2PCh. 20.5 - I=765 m I=___ cdCh. 20.5 - I=432 m I=___ cdCh. 20.5 - I=75.0 cd I=___ mCh. 20.5 - I=650 m I=___ cdCh. 20.5 - I=900 m r=7.00 ft E=?Ch. 20.5 - I=741 m r=6.50 m E=?Ch. 20.5 - I=893 m r=3.25 ft E=?Ch. 20.5 - E=4.32 lux r=9.00 m I=?Ch. 20.5 - E=10.5 ft-candles r=6.00 ft I=?Ch. 20.5 - Prob. 12PCh. 20.5 - Prob. 13PCh. 20.5 - Prob. 14PCh. 20.5 - If an observer triples her distance from a light...Ch. 20.5 - If the illuminated surface is slanted at an angle...Ch. 20.5 - Find the illumination on a surface by three light...Ch. 20.5 - Find the intensity of two identical light sources...Ch. 20.5 - Find the intensity of two identical light sources...Ch. 20.5 - A desk is 3.35 m below an 1850-m incandescent...Ch. 20 - Which of the following are examples of...Ch. 20 - Prob. 2RQCh. 20 - Prob. 3RQCh. 20 - Light behaves a. as a massive particle. b. always...Ch. 20 - Does the wavelength of light depend on its...Ch. 20 - Prob. 6RQCh. 20 - How does the intensity of illumination depend on...Ch. 20 - In your own words, explain how the speed of light...Ch. 20 - Does light always travel at the same speed?...Ch. 20 - What name is given to the entire range of waves...Ch. 20 - Prob. 11RQCh. 20 - Who developed the wave packet theory of light?Ch. 20 - Who made the first estimate of the speed of light?Ch. 20 - How was the first estimate of the speed of light...Ch. 20 - What are the units of luminous intensity?Ch. 20 - In your own words, explain luminous intensity.Ch. 20 - Find the distance (in metres) traveled by a radio...Ch. 20 - A radar wave that is bounced off an airplane...Ch. 20 - How long does it take for a police radar beam to...Ch. 20 - Prob. 4RPCh. 20 - How long does it take for a radio signal to travel...Ch. 20 - Find the wavelength of a radio wave from an AM...Ch. 20 - Find the frequency of a radio wave if its...Ch. 20 - Prob. 8RPCh. 20 - Prob. 9RPCh. 20 - Prob. 10RPCh. 20 - Prob. 11RPCh. 20 - Prob. 12RPCh. 20 - Prob. 13RPCh. 20 - Find the intensity of the light source necessary...Ch. 20 - Prob. 15RPCh. 20 - Find the intensity of two identical light sources...Ch. 20 - Find the illumination on a surface by three light...Ch. 20 - Prob. 1ACCh. 20 - (a) When the Apollo astronauts landed on the moon,...Ch. 20 - Prob. 3ACCh. 20 - The individual rods on rooftop antennas are...Ch. 20 - Prob. 5AC
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