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purplepanda69
30.11.2020 •
Engineering
If the phase shift is π/2 rads and T is the period, then the voltage at (T/2) is
a. zero
b. +peak/2
c. +peak
d. -peak
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Ответ:
d. - peak
Explanation:
In alternating current, the voltage is represented by the following formula:
where,
t=time
The angular frequency can be written in terms of the period (T), so:
So the equation will now lok like this:
we know that
and that
so the equation will now look like this:
which can be simplified to:
Which solves to:
so the answer is d. -peak
Ответ:
Explanation:g