Question

N1=500 vòng, N2=2500 vòng, U1=220v, R2=150, tính U2 và I2?

Answer 1

\(\dfrac{N_1}{N_2}=\dfrac{U_1}{U_2}\) => \(U_2=\dfrac{N_2.U_1}{N_1}\) = 1100v

\(I_2=\dfrac{U_2}{R_2}\) = \(\dfrac{1100}{150}=\dfrac{22}{3}\) (A)