Transmitting Power at High Voltage, E

question 35

Multiple Choice

Transmitting power at high voltage, e.g., 400,000 V, reduces the power loss for transmission lines. But such a voltage would destroy electrical devices in household use. How then can such 400,000 V electricity be used in a normal house?

• A) The ground prongs on household plugs reduce the voltage to 120 V.
• B) Before reaching households, transformers are used to reduce the voltage appropriately.
• C) No matter the incoming voltage, a 120-V device only lets 120 V in.
• D) The 400,000 V is just theoretical; long distance transmission lines actually use 120 V.

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Definitions:

Reciprocity Norms

Social norms that dictate that we should treat others as they treat us, leading to mutual benefit or support.

Reciprocity Norm

A social expectation that people will respond to each other in kind, returning benefits for benefits and responding to harms with either retaliation or forgiveness.

Social-Responsibility Norm

An expectation that people will help those dependent upon them.

Deindividuation

A psychological state characterized by reduced self-awareness and diminished personal responsibility, often occurring in group settings.