Questions tagged [short-circuits]

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What is the value of EMF during a short circuit?

During a short-circuit, 'theoretically' current becomes infinite. But what about the emf? My attempt: Since the potential difference is zero, I guess the emf should also be zero. But again since p.d. ...
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Resistors parallel to short circuit

I have a trouble solving this problem. (Actually, each resistor is not parallel with the bottom wire since the voltage across each of them is different with that of wire.) In the manual, the bottom ...
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Thevenin equivalent voltage and resistance of a circuit: verification needed

Here is my reasoning: We have to sources so me must use superposition: We first replace the current source by its resistance which is infinite for an ideal current source. Now we need to measure ...
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Why can't I measure my solar panels short circuit current?

I connected the multimeters COM port to the negative lead on my solar panel, the 200mA port to the positive lead on the panel. I then pointed a lamp at the solar panel the voltage was around 7V, but ...
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insulated charged object making contact with an open circuit

I have a circuit in where an "object" is going to be placed instantaneously in the gap of the circuit, but the object will not touch the wire on either side of the gap. The objects has two blocks of ...
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Adding a “short circuit,” changing currents

Note that this isn't a homework problem, just a question the concept. Let's take this quick circuit I drew up just now in MS paint. There are three different currents, one for the top, middle, and ...
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Conceptual scheme of circuits

What would happen if I were to connect two ends of a battery with a magic wire of no resistance? In the conceptual scheme of modeling circuit behavior there is always a circuit with a resistor given ...