1) If the electrical power lines in a certain neighborhood deliver electricity at 72,000 volts, which combination of the following transformer coil pairs will supply electricity at 120V to customer's homes? (Primary coil first, secondary into homes second.) A) 15,000 :: 25 B) 25 :: 15,000 C) 600 :: 120 D) 120 :: 600 E) 15,000 :: 120

1) If the electrical power lines in a certain neighborhood deliver electricity at 72,000 volts, which combination of the following transformer coil pairs will supply electricity at 120V to customer's homes? (Primary coil first, secondary into homes second.) A) 15,000 :: 25 B) 25 :: 15,000 C) 600 :: 120 D) 120 :: 600 E) 15,000 :: 120