The ratio of electric power to current voltage resistance in parallel circuit P1:P2=_____ ( I ) ______ ( U ) ————（ R ） Just give me the alphabet. No text

The ratio of electric power to current voltage resistance in parallel circuit P1:P2=_____ ( I ) ______ ( U ) ————（ R ） Just give me the alphabet. No text

In parallel circuit, the voltage at both ends of each resistor is equal, which can be obtained from P = u * I = u ^ 2 / r = I ^ 2 * r
P1：P2＝I1：I2　　（I）　
P1：P2＝R2：R1　（R）
Because the voltage at both ends of each resistor is equal, the ratio of power can only be expressed by the inverse ratio of resistor or by the ratio of current, but the ratio of electric power cannot be expressed by the ratio of voltage