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# PHY301 GDB Solution & Discussion Fall 2010

Do you agree that “Every short circuit is a closed circuit while every close circuit may not be short circuit .Give arguments in support of your answer.”

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### Replies to This Discussion

Idea solution
This isn't something you "agree" with and argue about. It's a question of scientific definitions. And yes, it is correct.
A short circuit is defined as a closed circuit where the current does not encounter any significant resistance.
A closed circuit is any circuit where current can flow. It doesn't have to be short at all, so long as it carries resistance.
There are no counterarguments or disagreements- that's what those circuits are.

An open circuit has a break in it somewhere, so the circuit is not complete and electricity cannot flow. When you power off a light, for example, with an on/off switch, you open the circuit, turning off the light as desired. When there is an unwanted open circuit, for example from a damaged wire, the device or system is unpowered and cannot operate.
A short circuit has some unwanted contact between points at different voltage levels, such as from hot to neutral or ground, or between positive and negative. When a short is in a circuit, electricity will take only that path of little or no resistance. The rest of the system is deprived of power, and the conductors feeding the point of the short will likely overheat or burn unless a fuse or breaker operates, creating now an open circuit.

open circuits don't glow up and they don't let electricity flow through back into the wall, ceiling, or cell (which is a battery basically but batteries are more than one cell), closed circuits light up and they let electricity flow through back into the wall, ceiling, or cell (which is a battery basically but batteries are more than one cell)

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