Engineering, 19.10.2019 00:20 wavy419

At audio frequencies (below 20khz), electromagnetic waves have very wavelengths. the wavelength is typically much larger than the length of any of the wires in the circuit used. an exception would be long or lines. (hint: pots and 60hz). when wavelength is much shorter than the wire lengths, the basic rules of electronic circuits apply and theory is not necessary.

Answers: 3

Show answers

Other questions on the subject: Engineering

Engineering, 04.07.2019 18:10, yasminothman02

An air conditioning system consist of a 5 cm diameter pipe, operating at a pressure of 200 kpa. the air initially enters the pipe at 15°c with a velocity of 20 m/s and relative humidity of 80%. if the heat supply throughout the process is 960 w, determine the relative humidity and the temperature at the outlet

Answers: 3

continue

Engineering, 04.07.2019 18:10, bunnles

During a steady flow process, the change of energy with respect to time is zero. a)- true b)- false

Answers: 2

continue

Engineering, 04.07.2019 18:10, lowkeyqueenk

Apipe with an outside diameter of 15 cm is exposed to an ambient air and surrounding temperature of -20°c. the pipe has an outer surface temperature of 65°c and an emissivity of 0.85. if the rate of heat loss from the pipe surface is 0.95 kw per meter of length, the external convective heat transfer coefficient (h) is: (a) 12.5 w/m"k (b) 18.6 w/mk (c) 23.7 w/mk (d) 27.9 w/mk (e) 33.5 w/mk

Answers: 1

continue

Engineering, 04.07.2019 18:20, sarah7984

Vibration monitoring this technique uses the noise or vibration created by mechanical equipment and in seme cases by plant systems to detemine their actual condtion. a)- true b)- false

Answers: 2

continue

You know the right answer?

At audio frequencies (below 20khz), electromagnetic waves have very wavelengths. the wavelength is...