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With RL disconnected, derive the thevenin equivalent circuit as seen bet the terminals A & B. Using the equivalent circuit, verify the current you calculated in (x) when the load resistor is connected between A and B.
physic 難題 16
2012-05-08 4:41 am
回答 (1)
2012-05-08 5:16 am
✔ 最佳答案
When RL is disconnected, we have9 - 4 = I.(1000 + 1000)
where I is the current through the loop containing the two batteries and the two 1 kOhm resistors.
hence, I = 5/2000 A = 0.0025 A
The voltage across AB (Thevenin voltage) = (9 - 0.0025 x 1000) v = 6.5 v
The Thevenin resistance = 1000/2 ohms = 500 ohms
Therefore, the Thevenin equivalent circuit consists of a 6.5 v voltage source in series with a 500-ohm resistance.
where is (x) ???
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