In parallel circuit, the voltage is equal. According to u = IR, the ratio of current is equal to the inverse ratio of resistance Parallel circuit, equal voltage According to u = IR The ratio of current is equal to the inverse ratio of resistance That is, I1: I2 = R2: R1 Why is it that the ratio of current equals the inverse ratio of resistance,

In parallel circuit, the voltage is equal. According to u = IR, the ratio of current is equal to the inverse ratio of resistance Parallel circuit, equal voltage According to u = IR The ratio of current is equal to the inverse ratio of resistance That is, I1: I2 = R2: R1 Why is it that the ratio of current equals the inverse ratio of resistance,

U=IR
I=U/R
Then: I1 / I2 = U1 / R1: U2 / r2
The results show that I1: I2 = R2: R1

According to u = IR, the voltage u at both ends of a conductor is determined by the current I passing through it and its resistance?

When the voltage is constant, the change of resistance also determines the change of current. Theoretically speaking, the change of voltage does not change with the size of resistance, but the change of current