Ohm's law of closed circuit Is the terminal voltage necessarily the power supply voltage? What are the internal resistance and external resistance? What are their differences and connections?

Ohm's law of closed circuit Is the terminal voltage necessarily the power supply voltage? What are the internal resistance and external resistance? What are their differences and connections?

Since you are asking about Ohm's law of closed circuit in high school physics, my answer is as follows: 1. The terminal voltage must not be the electromotive force of the power supply. It is less than the electromotive force of the power supply. 2. The negative resistance is the internal resistance of the power supply, and the external resistance is the external resistance of the power supply when the power supply is connected to the circuit

The difference between Ohm's law of partial circuit and Ohm's law of closed circuit

Ohm's law of partial circuits - the application environment in which the terminal voltage is treated as constant without considering the internal resistance of power supply
Ohm's law of closed circuit: the EMF of power supply is treated as invariable, and other conditions should be considered

What is the difference between Ohm's law of closed circuit and Ohm's law of partial circuit?

Of course, there is a difference
Ohm's law of closed circuit is also called Ohm's law of whole circuit
The electromotive force and internal resistance should be considered
External circuit and internal circuit
The variation is complex
Ohm's law of partial circuit
It's simple
I = u / R