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Question 2 (~20 min total): [This is pg. 485 #66] Household electricity is supplied in the form of alternating current t
Posted: Wed Jun 08, 2022 11:24 am
by answerhappygod
- Question 2 20 Min Total This Is Pg 485 66 Household Electricity Is Supplied In The Form Of Alternating Current T 1 (106.39 KiB) Viewed 29 times
Question 2 (~20 min total): [This is pg. 485 #66] Household electricity is supplied in the form of alternating current that varies from 155 V to -155 V with a frequency of 60 cycles per second (Hz). The voltage is thus given by the equation E(t) = 155 sin(120 t) where t is the time in seconds. Voltmeters read the RMS (root-mean-square) voltage, which is the square root of the average value of [E(t)], over one cycle....that is the square root of 1/60 1 S[E(t)}dt 1/60 0 a) (10 min) Calculate the RMS voltage of household current. Do this by hand, then use Maple to check your answer. b) (10 min) Many electric stoves require an RMS voltage of 220 V. Find the corresponding E(t) = Asin(120 t) amplitude A needed for the voltage