What kind of electric power do you have in your home? AC or DC What is Squareroo

Question

What kind of electric power do you have in your home? AC or DC What is Squareroot 2 = _______ (in decimal notation)? What is 2 Squareroot 2 = (in decimal notation)? What is 2 Squareroot 2 = _______(in decimal notation)? Given V_rms = 0.707 V_max, what's the value of V_max when V_rms = 120 v?______ What is the frequency of the electric power in your house? ______ How would you measure the voltage of the electric power in your house? ___________________________________ What is the frequency of a DC voltage? Define time period in your own words Define frequency in your own words If you go around a circle once, and it takes 10 seconds, what is the time period? What is the frequency? An instrument that measure instantaneous voltage as a function of time is called __________ What is the relationship between the time period and the frequency?

Explanation / Answer

1. AC

2. sqrt(2) = 1.414

3. 2.828

4. 0.707

5. 120 = 0.707 Vmax

Vmax =169.73 Volt

6. 60 Hz

9. for DC, f = 0

10. time period - time taken to complete one oscillations.

11. frequency - number of oscillations per second.

12. T = 10 s

f = 1/T = 0.1 Hz

13. voltmeter

14. T = 1/f

(inversly propotional )

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