A Transformer Is Used to Step Up the Voltage to a Power

question 41

Multiple Choice

A transformer is used to step up the voltage to a power line. If the stepped-up voltage is 10 times the original value, by how much will the power loss in the line decrease?

• A) more than 95%
• B) between 10% and 20%
• C) between 20% and 95%
• D) There will be no change since the power into a transformer equals the power out.

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