Reducing the Magnetic Field to 71% of Its Previous Value

question 44

Multiple Choice

Reducing the magnetic field to 71% of its previous value changes the magnetic energy density in the field to ________% of its original value.

• A) 39
• B) 50
• C) 71
• D) 85
• E) 15

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Definitions:

Monthly

Relating to or occurring once a month; often used to describe payments, subscriptions, or reporting periods that happen once per month.

Advertising

The act of calling public attention to products, services, or needs through various forms of media, with the aim of influencing consumer behavior.

Profits

The financial gain obtained when the revenue from business activities exceeds the expenses, costs, and taxes involved in sustaining the activity.

Jeweler

A person or business that designs, makes, sells, and repairs jewelry and watches.