An AC power generator produces 42.9 A (rms) at 2 970 V. The voltage is stepped up to 6 000 V by an ideal transformer, and the energy transmitted through a long-distance power line with a total resistance of 100 ?. What is the rms current in the long-distance line?

a. 87 A
b. 21.2 A
c. 42.9 A
d. 30.2 A
e. 61.0 A


b

Physics & Space Science

You might also like to view...

Evidence of liquid water has not been seen on which of these jovian moons?

A) Titan B) Ganymede C) Europa D) Mimas

Physics & Space Science

A ball is dropped from a rooftop of a building and falls for two seconds. The acceleration of gravity is 9.8 m/s2 . The ball is referred to at the two-second time. The ball is referred to at the two-second time. The distance below the rooftop is __________

Fill in the blank(s) with correct word

Physics & Space Science

Lenses can be used to focus sunlight to a small point to burn paper or dry brush. A person demonstrates this using their own eyeglasses as the lenses. From this you can tell that

A. the person is either near- or farsighted but not both. B. the person is farsighted. C. the person is both near- and farsighted. D. the person is nearsighted.

Physics & Space Science

Identify the falsi?able statement below

A) President Kennedy's murder was orchestrated by an undetectable shadow government of the United States. B) The Sun is at the center of the solar system. C) The laws of nature are magni?cent and beautiful. D) The universe was created by God.

Physics & Space Science