In a circuit, if the voltage U and resistance R are doubled at the same time, how will the power change

U2 is the u-square, 22 is the square of 2, 42 is the square of 4, and the fraction line is denoted by /
According to the formula P = U2 / R, we can try it with a number
eg：P=U2/R=22/10=0.4（W）
Then the voltage U and the resistance R are doubled at the same time
P=U2/R=42/20=0.8（W）
Obviously, when the voltage U and the resistance R are doubled at the same time, the electric power is doubled
You can continue to bring your own number to try

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