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Mathematics 21 Online
OpenStudy (anonymous):

The current in an alternating circuit varies in intensity with time. If "I" represents the intensity of the current and "t" represents time, then the relationship between "I" and "t" is given by: I=20sin(120pi*t) where I is measured in amperes and t is measured in seconds. Find the maximum value of I and the time it takes for I to go through one complete cycle

OpenStudy (earthcitizen):

i suppose we differentiate here ?

OpenStudy (anonymous):

I don't know

OpenStudy (earthcitizen):

we find the higher derivatives of \[di/dt, d ^{2}i/dt ^{2}\]

OpenStudy (anonymous):

Maximum value of sine function is 1 hence maximum current is 20A

OpenStudy (anonymous):

max value of of I is 20; complete cycle is 1/60 sec

OpenStudy (earthcitizen):

what are studying @jazzylj ?

OpenStudy (earthcitizen):

u*

OpenStudy (anonymous):

trig

OpenStudy (earthcitizen):

..in school, as a degree ?

OpenStudy (anonymous):

computer science

OpenStudy (earthcitizen):

kk, awesome

OpenStudy (earthcitizen):

was your question answered ?

OpenStudy (anonymous):

do u get it

OpenStudy (anonymous):

No, I don't

OpenStudy (anonymous):

I'm not sure where to start

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