The power factor of an RLC circuit is defined as cos ? = R/Z, but the phase angle can also be calculated from
A) sin ? = (XL - XC)/Z.
B) sin ? = (XL - XC)/RZ.
C) sin ? = Z/(XL - XC).
D) sin ? = RZ/(XL - XC).
A
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a. zero b. 1/10 J c. 10 J d. 100 J e. 1 000 J
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