27 - Kapoor (mk9499) oldhomework 27 Turner (60230) 1 This...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Kapoor (mk9499) oldhomework 27 Turner (60230) 1 This print-out should have 11 questions. Multiple-choice questions may continue on the next column or page find all choices before answering. 001 (part 1 of 2) 10.0 points An AC power supply produces a maximum voltage of 90 V. This power supply is con- nected to a 22 resistor, and the current and resistor voltage are measured with an ideal AC ammeter A and an ideal AC voltmeter V, as in the figure. V A E = E max sin t E max = 90 V S 22 What does the voltmeter read? Note: Re- call that an ideal ammeter has zero resistance and an ideal voltmeter has infinite resistance. Correct answer: 63 . 6396 V. Explanation: Let : V max = 90 V . The voltmeter reads the rms voltage V rms = V max 2 = 90 V 2 = 63 . 6396 V . 002 (part 2 of 2) 10.0 points What is the reading of the ammeter? Correct answer: 2 . 89271 A. Explanation: Let : R = 22 . The ammeter reads the rms current I rms = V rms R = 63 . 6396 V 22 = 2 . 89271 A ....
View Full Document

This note was uploaded on 06/28/2009 for the course PHY 303L taught by Professor Turner during the Fall '08 term at University of Texas at Austin.

Page1 / 3

27 - Kapoor (mk9499) oldhomework 27 Turner (60230) 1 This...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online