Evaluate the Following Expression If It Represents a Real Number

question 64

Multiple Choice

Evaluate the following expression if it represents a real number.

• A) 243
• B) 2.40822
• C) 3486784401
• D) 81
• E) 3.94822

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Definitions:

Center-Tapped Transformer

A transformer that has a wire connected to the electric midpoint of its winding. Generally, the secondary winding is tapped.

High Leg

A certain type of three-phase power connection that exhibits a higher voltage on one leg when measured to ground than on the other legs.

Output Power

The amount of power, typically measured in watts, that a device, system, or process delivers to its load.

Open Delta

An open delta connection refers to a method of transformer connection used in electrical systems that employs two transformers to create a three-phase supply with a smaller capacity than a full delta connection.