ElectroNewby
Member
v(t) = 40 sin(400∏t + 150°)V
I need to find a "positive value of t for which the tension is minimal".
The answer is 1,67 ms but I don't know how to get there ?
I did "t zero" + the period of 5 ms : (-Φ/∏) + (2∏/400∏) but don't end up on it. The 5 ms addition was to jump the 1st cycle, to be at zero amplitude and be in the positive side of the X axis. I tried with half a cycle but don't get to 1,67 ms.
What am I missing ?
Thank you so much
I need to find a "positive value of t for which the tension is minimal".
The answer is 1,67 ms but I don't know how to get there ?
I did "t zero" + the period of 5 ms : (-Φ/∏) + (2∏/400∏) but don't end up on it. The 5 ms addition was to jump the 1st cycle, to be at zero amplitude and be in the positive side of the X axis. I tried with half a cycle but don't get to 1,67 ms.
What am I missing ?
Thank you so much