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Calculate the instantaneous value of the current i(t) = 3.6 sin (100π t + π/9) A at t = 16.6 ms. (Note that the argument to the trigonometric functions is given in radians.) Answer in either A or mA

2. (Original post by mbooker)

Calculate the instantaneous value of the current i(t) = 3.6 sin (100π t + π/9) A at t = 16.6 ms. (Note that the argument to the trigonometric functions is given in radians.) Answer in either A or mA

The equation is given in the form

where:

A is the amplitude = 3.6

Do the conversions and plug in the values.

3. Thanks so much for that, I get -2.3789A is that right?
(Original post by uberteknik)
The equation is given in the form

where:

A is the amplitude = 3.6

Do the conversions and plug in the values.

4. (Original post by mbooker)
Thanks so much for that, I get -2.3789A is that right?
Hi is my answer getting on the mark, just trying to see if on right track

I get -2.3789A is that right?
5. (Original post by mbooker)
Hi is my answer getting on the mark, just trying to see if on right track

I get -2.3789A is that right?
Yes. Make sure you round the answer to be consistent with the number of significant figures given in the question. i.e. -2.38A

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