Power: An ac series circuit has an impedance of 60 ? and a resistance of 30 ?. What is the power factor of this circuit?

A. 0.50
B. 0.71
C. 1.0
D. 1.4


Answer: A

Physics & Space Science

You might also like to view...

What is true of spiral galaxies?

A) They are much less common at larger redshifts. B) They are relatively rare in regions of high galaxy density. C) They are only found in the center of rich galaxy clusters. D) They have never been seen to have large redshifts. E) They evolve from giant ellipticals.

Physics & Space Science

If a proton and an electron have the same de Broglie wavelengths, which one is moving faster?

A) the electron B) the proton C) They both have the same speed.

Physics & Space Science

An object is pulled with two forces, 10 N northward and 15 N southward. The direction of the net force is to the

A) north. B) south. C) east. D) west. E) none of the above

Physics & Space Science

How does volcano activity connect to warning signs?

What will be an ideal response?

Physics & Space Science