All Questions
7
questions
-1
votes
3
answers
120
views
Is there a non-zero field within an ideal current carrying wire?
Its true that there is a non zero field (in fact,a field of the magnitude of counter electric field inside the battery used) within a current carrying IDEAL wire (unlike static condition). Thus there ...
- 11
1
vote
2
answers
4k
views
How does current flow in a short circuit? [duplicate]
In a short circuit, the potential difference across the terminals of a battery (consider a single cell with internal resistance)is 0 according to the equation
$$V=E-Ir,$$
where $r$ is internal ...
-1
votes
1
answer
87
views
is this the reason why current doesn't flow over a resistance if there is another path without resistance? [duplicate]
Let's suppose that a single battery is connected with a wire, which does not have resistance. Electrons will start to flow , in reality, with a wire with resistance, a potential difference would be ...
- 1,235
0
votes
1
answer
606
views
If we put a voltage on a big square piece of aluminum sheet how will the distribution of the current look like?
Picture an enormous square piece of aluminum sheet, say of $100\times100(m^2)$, on which' two opposite corners we put a potential difference. The ensuing current is low enough to do no damage to the ...
1
vote
0
answers
110
views
Concept of short circuits [duplicate]
Starting from my secondary school, I have never understood the concept of short circuits. For instance, why would current prefer a path with no resistance than a path with much resistance? How does it ...
- 995
2
votes
1
answer
699
views
Kirchoff's voltage law applied with no circuit elements
Imagine a 1.5V battery with both terminals connected securely via a paperclip.
According to KVL, the sum of voltage drops in the circuit (total energy dissipated across circuit elements) must equal ...
- 161
3
votes
2
answers
8k
views
Why does all the current flow through a short circuit if its voltage drop is considered zero?
Path of least resistance vs. short circuit
I know the path of least reisistance has been clarified already However, to derive the equations you need to assume that the voltage of each parallel ...
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