The power brick for a laptop computer has input (rms) voltage of 120. V and output (rms) voltage of 19.5 V. The output (rms) current is 3.34 A. a. What is the turns ratio Nprimary/N gecondary? b. How much (rms) current does the laptop power pack draw from the wall socket when operating? Assume it is an ideal transformer.
The power brick for a laptop computer has input (rms) voltage of 120. V and output (rms) voltage of 19.5 V. The output (rms) current is 3.34 A. a. What is the turns ratio Nprimary/N gecondary? b. How much (rms) current does the laptop power pack draw from the wall socket when operating? Assume it is an ideal transformer.
Chapter15: Alternating-current Circuits
Section: Chapter Questions
Problem 15.9CYU: Check Your Understanding A transformer steps the line voltage down from 110 to 9.0 V so that a...
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