Level:
Project ID:
2010014702
Source Problem:
Accepted:
0
Clonable:
1
Easy:
0
The time characteristic of an alternating voltage \(u\) is given in the figure, where \(U_m\) is the peak value of \(u\). Find the effective value \(U\) of the alternating voltage \(u\) provided the following relation holds: \(U^2T=\int_0^T u^2\mathrm{d}t\).
\( U=\frac{\sqrt{3}}3 U_m\)
\( U=\frac{\sqrt{2}}2 U_m\)
\( U=\frac{1}3 U_m\)
\( U=\frac{1}2 U_m\)