What about Joule Lenz's law? 1: Is Joule Lenz's law a person? 2: Joule Lenz law I read in a book that the heat generated by a circuit is directly proportional to the square of the current intensity, the resistance, and the time of the current flowing. Later, I thought, it's not quite right. First, in a circuit, of course, the larger the resistance is, the greater the heat generated, the smaller the line resistance is, the smaller the power transmission is, and the smaller the loss is. Of course, the smaller the heat generated, but on the other hand, for example, the electric furnace, The smaller the resistance of the electric furnace wire, the greater the power, and the greater the heat generated. How can it be reversed?

What about Joule Lenz's law? 1: Is Joule Lenz's law a person? 2: Joule Lenz law I read in a book that the heat generated by a circuit is directly proportional to the square of the current intensity, the resistance, and the time of the current flowing. Later, I thought, it's not quite right. First, in a circuit, of course, the larger the resistance is, the greater the heat generated, the smaller the line resistance is, the smaller the power transmission is, and the smaller the loss is. Of course, the smaller the heat generated, but on the other hand, for example, the electric furnace, The smaller the resistance of the electric furnace wire, the greater the power, and the greater the heat generated. How can it be reversed?

1. No
2. In the case of the same current and power on time, the greater the resistance, the more heat generated!

Experimental principle of Joule's law

Joule's law is a law that quantitatively explains that conducting current converts electric energy into heat energy. In 1841, British physicist Joule discovered that the heat Q (called Joule heat) produced in current carrying conductor is proportional to the square of current I, resistance R of conductor and power on time T. This Law is called Joule's law

Is Joule's law, Lenz's law, Joule Lenz's law the same law

Joule's law is also known as Joule Lenz's law, which describes the power of electricity into heat of pure resistance in circuit, P = I * I * r;
Lenz's law describes the law of induced current (potential) and induced magnetic field

(4) You know what? That famous physicist's name is Joule! That great law is the conservation of energy! What you just experienced is a miniature of this great work______________ .

It seems that the law of conservation of energy was not proposed by a scientist alone