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Will a circuit work if it has a breAk in it?
No because for electricity to go around in the circuit it has to be closed.ok here's how I learned it the wires to the electricity is is like the rollercoaster track to the car so if the circuit isn't closed or the rollercoaster track has a giant gap either the electricity won't go through or the people will fall
Why do the resistance is zero in case of short circuit?
The current is 0. Current is the unit of flow of electrons in a circuit, and in an open circuit, electrons cannot flow. Therefore there is 0 current. Another way to look at it is that I = V / R, where I = Amps (current), V = voltage, and R = resistance (impedance). In an open circuit, the impedance is infinite, and by using our math skills, we know that X (or V in our case) divided by infinity, is 0. I = V / Infinity = 0
If you have a DC passing through a circuit will the current decrease when you add a DC motor and if so by how much?
In the circuit where the DC motor is added, it was not specified whether the motor was added in series or in parallel to circuit elements. If it was added in series, it will increase circuit resistance and it will cause circuit current to go down. In parallel, the motor will reduce total circuit resistance, and circuit current will increase.
Why parallel circuit connection is used in common wiring practice?
A parallel circuit is used in common wiring practice because it allows one item to go out and the rest will remain on. Say that you had an office building. If every light bulb in the place was connected in series(every light bulb connected to the next on one current path), if one were to burn out, the circuit would break and all the other bulbs would go out. By using a parallel circuit, one bulb can go out and the rest can stay lit. Another reason that this occurs is because of the resistance involved in a series circuit. By connecting everything in one path, resistance to current will grow rapidly, so and current supplied to the circuit would be wasted by the resistance. Connecting in parallel gives multiple pathways for current to travel between devices and power sources, so the resistance is much lower, and more of the energy goes to powering the device rather than overcoming resistance.
How are circuit breakers connected with the other elements in a circuit?
Both of these devices are safety devices used to open a faulted circuit and stop the current flow.
