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Thread moved from the technical forums, so no Homework Template is shown

Hi,

I'm working on an assignment for circuit theory, and I'm wondering if someone could let me know if I'm heading in the right direction?

1) I have a voltage value of 120 /_0 (polar form), from this can I assume that Arctan (a/b) =0, so voltage =120 in phase?

Therefore, V =120+J0, where V = a+jb

2) If I have a v = √2 x415cos(100π

where Cos(0) = 1

is this correct, or am I missing something?

Thanks,

Colin

I'm working on an assignment for circuit theory, and I'm wondering if someone could let me know if I'm heading in the right direction?

1) I have a voltage value of 120 /_0 (polar form), from this can I assume that Arctan (a/b) =0, so voltage =120 in phase?

Therefore, V =120+J0, where V = a+jb

2) If I have a v = √2 x415cos(100π

*t) ,*basically can I say that "*t = 0" ,*I end up with v = √2x415cos (0),where Cos(0) = 1

is this correct, or am I missing something?

Thanks,

Colin