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Author Question: The rate of heat dissipation in an AC circuit with resistance, R, and effective current, Irms, is ... (Read 35 times)

vHAUNG6011

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on: Jul 28, 2018
The rate of heat dissipation in an AC circuit with resistance, R, and effective current, Irms, is given by which of the following?
 a. (Irms)2R
  c. 2.0  (Irms)2R
  b. 4.0  (Irms)2R
  d. 0.5  (Irms)2R

Question 2

A string with fixed ends is made to go into standing wave patterns. At a given tension, the lowest frequency for which such a pattern exists is 150 Hz. Which of the following frequencies would also cause a standing wave pattern in this case?
 a. 250 Hz
  b. 500 Hz
  c. 750 Hz
  d. All of the above frequencies will cause a standing wave pattern in this case.


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kswal303

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Reply #1 on: Jul 28, 2018
Answer to Question 1

A

Answer to Question 2

C


vHAUNG6011

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Reply 2 on: Jul 28, 2018
Great answer, keep it coming :)

amandalm

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Reply 3 on: Yesterday
Gracias!

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