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When does Internal resistance equals external resistance?
If Rin = Rout, then the voltage at the output of the device goes down to half of the value that the circuit has without the external resistance.
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Why internal resistance resistance of a battery is not constant?
First , it varies with the materials from wich they are builded . And when you say material , not supraconductor , it will have a probability to loose some power . But the real problem exist in the...
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When 3 resistance in parallel calculate the total resistance?
1 / (1/r1 + 1/r2 + 1/r3)
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How do you place 3 resistance to get the total resistance of 1 ohm?
It depends on the resistance of each resistor. If each resistor, for example, is 0.333 ohm, then you could connect them in series. If each resistor, for example, is 3 ohms, then you could connect...
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Why internal resistance of battery is greater than external resistance?
A: The question should be reversed since a battery is a very low impedance device. The external resistance must be greater otherwise it will last a very very short time.