The discussion centers on the confusion regarding the shorting of a 4kΩ resistor in a circuit transformation. It clarifies that the resistor is not randomly shorted; rather, it is part of a Thevenin equivalent transformation involving a 5 mA current source and a 16kΩ resistor. This transformation simplifies the circuit analysis by replacing the original components with an equivalent circuit. The distinction between Norton and Thevenin equivalents is noted, confirming that the transformation in question is indeed Thevenin. Understanding this concept is crucial for accurately analyzing circuit behavior.
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Mdhiggenz
324
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Homework Statement
I am a bit confused on why they can just randomly short the 4kΩ resistor, as you can see from the first pic to the second pic.
They didn't just short the 4K resistor. The 5 ma current source, the 16K resistor and the 4 k resistor was made into a norton (or is it thevinin) equivalent.
TL;DR Summary: I came across this question from a Sri Lankan A-level textbook.
Question - An ice cube with a length of 10 cm is immersed in water at 0 °C. An observer observes the ice cube from the water, and it seems to be 7.75 cm long. If the refractive index of water is 4/3, find the height of the ice cube immersed in the water.
I could not understand how the apparent height of the ice cube in the water depends on the height of the ice cube immersed in the water. Does anyone have an...
Kindly see the attached pdf. My attempt to solve it, is in it.
I'm wondering if my solution is right. My idea is this: At any point of time, the ball may be assumed to be at an incline which is at an angle of θ(kindly see both the pics in the pdf file). The value of θ will continuously change and so will the value of friction.
I'm not able to figure out, why my solution is wrong, if it is wrong .