根据欧姆定律,电线(wire)是有电阻值的,当通过大电流时会产生热量,电线温度升高,同时也会向外辐射热量,当温度升高到发热与散热平衡时也就恒温了(its temperature is constant).
a physics question
1个回答
相关问题
-
a very easy question (_physical
-
physics questions
-
an easy physics question!
-
"Our physics teacher asked a difficult question, but we all
-
Professional physics questions!关于公式R=r*A^1/3
-
how to solve this physics question?
-
An Easy Physics Question For College
-
( ) what way did he work out the physics A.In; question B.In
-
A Physics provincial Exame problem.
-
物理变化是“physical change"还是“physics change"