brittneyzenger001
31.08.2020 •
Physics
The peak value of an alternating current in a 1500-W device is 6.4 A. What is the rms voltage across it
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Ответ:
6787.5 V
Explanation:
From the question,
P = IV Equation 1
Where P = Power, I = rms current, V = rms voltage.
make V the subject of the equation
V = P/I Equation 2
Given: P = 1500 W, I = 6.4/√2 = 4.525 A
Substitute these values into equation 2
V = 1500(4.525)
V = 6787.5 V
Hence the rms voltage = 6787.5 V
Ответ:
A. Shoulder shrug, because its the only one close to the neck