A solar panel, under normal illumination, has a voltage of 12V and a short-circuit current of 36ma (short-circuit current is the ammeter connected in series with the solar panel) ）A 5 ohm fixed value resistor is connected in series with the solar panel, and the voltage and current of the fixed value resistor are the reasons

A solar panel, under normal illumination, has a voltage of 12V and a short-circuit current of 36ma (short-circuit current is the ammeter connected in series with the solar panel) ）A 5 ohm fixed value resistor is connected in series with the solar panel, and the voltage and current of the fixed value resistor are the reasons

The internal resistance of this solar panel is: 12 / 36 = 0.333 kiloohm (333 Ohm). When a 5 ohm resistor is connected in series, 12 / (333 + 5) = 0.0355a = 35.5ma, and the voltage on the resistor is: 35.5x5 = 117.5mv. Please refer to

There are several ways to measure resistance. What are their advantages and disadvantages?
As the title!
Find out the advantages and disadvantages of those resistance measurement methods

High precision resistance measurement should adopt four wire system or three wire system voltage measurement method. The advantage is high precision, but the disadvantage is troublesome. The measured voltage value needs to be converted. When the accuracy requirement is not high, it can be directly measured with Multimeter resistance. The advantage is simple and easy, but the disadvantage is low precision

A passive two terminal network composed of several resistors can be equivalent to a resistor, right

Right, if it's a linear circuit (only linear resistance), it's OK according to Thevenin's theorem

Two terminal network equivalent resistance method?
Is the equivalent resistance of the two terminal network of the passive circuit the sum of the resistances of the whole circuit?

Is to remove the power supply and then find the sum of the resistance of the whole circuit