When several outlets are on the same circuit the current comes first from the breaker panel to one outlet where it is connected to a duplex receptacle and/or switch or light, then to the NEXT outlet, light or switch. If a connection was not made properly at any point along the way it can corrode or somehow loose connection back to the breaker panel. If that happens, every outlet DOWNSTREAM will not be working properly. If you cannot track down the problem yourself, you will need to hire an electrician.
a short in the circuit
An electrician does not operate breakers he installs them.
I had the same problem with our 1998 Pontiac GP. Both windows suddenly failed to operate. Checked the circuit breaker, that was fine. Could not find any other type of fuse related to the windows. The answer? The electrical pigtail that should have been plugged into the two window operating switches on the drivers side door had come loose. Once reconnected, all was well. (To access the wiring, just GENTLY pry up the switch panel from the bottom - below the two window switches.)
Repairing circuit breakers is not advisable. When a breaker is taken apart there are many parts that have to specifically align up with each other. Any misalignment and the breaker may not operate correctly if subjected to a fault condition. Do like the landlubbers do and replace the faulty breaker with a new one. This makes everyone safe.
Yes it will operate it fine.
If you are describing a circuit breaker then its electromagnetic trip component will operate in the event of a line*-to-ground (*not 'phase'!) short circuit. The thermal overload component will only operate in the event of a sustained overload.
Routers operate at layer 3. LAN switches operate at layer 2. Ethernet hubs operate at layer 1.
Content switches
An electrician does not operate breakers he installs them.
Hubs are a physical layer (layer 1) device; most switches operate at the Data Link layer (Layer 2) of the OSI model.
Appliances like electric mixers use a high amperage to operate. It will be in the upper limits of the circuits breaker. The most likely scenario is that there is some other device also connected to the same circuit. The total combination is what is tripping the breaker. Another problem could be the mixer itself. These types of appliances usually use brushes to operate the motor. Check or take the mixer to an appliance repairman to check to see if the brushes have worn down and are shorting causing the breaker to trip.
on or off
Does this car have a safety lockout of the passenger switches? It's probably activated. If it was just one passenger window I would suspect a broken wire, most likely in the rubber bellows between the door and frame.
Circuit breakers operate on current not voltage.
Yes. Most switches (which operate at layer 2) will NOT route packets between different subnets. However special layer 3 switches DO have this capability.
There is a relay switch in the circuit which switches the light on & off when you activate the turn signal.
I had the same problem with our 1998 Pontiac GP. Both windows suddenly failed to operate. Checked the circuit breaker, that was fine. Could not find any other type of fuse related to the windows. The answer? The electrical pigtail that should have been plugged into the two window operating switches on the drivers side door had come loose. Once reconnected, all was well. (To access the wiring, just GENTLY pry up the switch panel from the bottom - below the two window switches.)
Switches / Bridges and hubs work at data link layer, but there are layer three switches which operate at network layer. Dhruv