Question

1. what (and why) does a step - down transformer do?

1 point
○ decrease voltage to make it safe for homes
○ decrease voltage to make it more powerful
○ increase voltage so that the electricity can travel longer distances (from the power plant to the houses)
○ increase voltage so you can use more electricity in your home at the same time

1. the boxes owned by dominion power that are scattered around neighborhoods that reduce voltage to ensure the safety of the homes are:

1 point
○ generators
○ step - up transformers
○ substations
○ step - down transformers

1. in a magnet, all domains (clumps of atoms with spinning electrons) point

1 point
______
○ in the same direction
○ in random directions
○ upward
○ downward

Explanation:

Question 34

A step - down transformer is designed to decrease voltage. High - voltage electricity from power plants is too dangerous for home use. So, a step - down transformer reduces the voltage to a safe level for homes. Making voltage more powerful is incorrect as lower voltage is less "powerful" in terms of potential danger but is safe. Increasing voltage is what step - up transformers do (for long - distance transmission), and increasing voltage doesn't let you use more electricity at the same time in the home.

Generators are used to produce electricity, not reduce voltage. Step - up transformers increase voltage (used in power plants for long - distance transmission). Substations are larger facilities, while the boxes in neighborhoods that reduce voltage for home safety are step - down transformers, as they lower the voltage from the transmission level to a safe home - use level.

In a magnet, the magnetic domains (clumps of atoms with spinning electrons) are aligned in the same direction. In a non - magnetized material, the domains are in random directions. The alignment in the same direction creates the magnetic field of the magnet. The directions "upward" or "downward" are too specific and not the general case for magnetic domains in a magnet.

Answer:

A. decrease voltage to make it safe for homes

Question 35