A:Hello,Tom.
B:Hi,Jenny. How do you feel?
A:I feel happy. Look! This is my sister(妹妹).
B:What's her name?
A:Her name is Kate.
B:What colour is her hair?
A:Her hair is black.
B:What colour are her eyes?
A:They are blue.
B:How nice(漂亮的)!
如果加在某定值电阻两端的电压从6V升高到10V,通过该电阻的电流变化了0.1 A,则该电阻的电功率变化了( )