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V=I*R Where: V is voltage I is the current in ampers R is resistance in ohms. So, if the current is 15 A and the resistance is 5 ohms, then the voltage must be 15 A *5 ohms = 75 V.
Series circuits, I'm doing my junior cert science so this may be wrong, but I'm pretty sure an example would be Christmas lights. If one blows they all are extinguished, because they share the one current of electricity. Car lights are parallel circuits.... I can't think of another series one, but I hope I helped a bit.
Questions seem to be two! First is the direct current in a circuit with 12 V battery and 3 ohm resistor in it. The answer is 4 ampere if there is negligible internal resistance in the battery. By ohm's law V = R I So, I = V/R Second one is the alternating current with 120V given to 60 W bulb. The answer is 0.5 ampere. This 0.5 is the rms value of alternating current. Power P = V I So, I = P/V
The purpose of neutral conductor is to carry the unbalanced load current. It is also a grounded conductor, which effectively places a limit on how much voltage could be present from hot to ground, a safety concern.
You would have infinite amperes if there was no resistance in the battery plates, the battery terminal posts and in the wires that are shorting the battery.But there is always resistance in those things so - depending on the thickness and therefore the effective resistance of the wires that are shorting the battery - the short circuit current will be from a few amps to many hundreds of amps and, unless someone sees it and acts quickly to remove the cause of the short, that current will continue until the battery either explodes or just runs down very fast.I've seen them go both ways, along with the shorting wires smoking and then glowing like an electric fire, and also I have seen molten globs of hot metal dripping off from carelessly misplaced tools such as heavy screwdrivers, particularly if made of aluminum, and such things as small wrenches.
The electricity runs through a coil of Tungsten. Tungsten has a very high resistance. As per Joule's Law, energy radiated is directly proportional to resistance. The energy radiated is so large that the coil starts to glow and light is produced.
Veins and Arteries, I believe is what you are asking about. Arteries carry freshly oxygenated blood from the lungs; veins return the 'spent' blood to the lungs for a recharge. Arteries carry greater blood pressure. The two major blood circuit are the Pulmonary Circuit which is the circuit that runs through the lungs and the Systemic Circuit, Which is the circuit that takes the blood through the body.
No, it is the current (amperes) that vary according to the resistance.
Circuit
There is a malfunction in the circuit that runs the light. Could be with the switch on the transfer case, in the wiring, or in the cluster.
Each of the circuit breakers in the service panel controls electricity on a branch circuit. A branch circuit is typically a loop of wire that runs from the service panel, out to receptacles, light fixtures, appliances, etc. and back again.
The wire that runs through to the light caries the power and the blinker itself has metal that touches the frame when it is screwed on and it grounds it to the frame. When it is grounded to the frame it completes the circuit. After it comes on there is a computer that senses it and makes it blink instead of just a steady light.
Light, heat, sometimes sound.
A parallel electrical circuit is a circuit coming from the same place as another circuit but that runs alongside of the first circuit. This is a poor analogy, but the best I could do on the spur of the moment If two or more cars enter the freeway at the same spot and stay in the same lane they are a series circuit. If one car pulls out and runs beside the second car, they are a parallel circuit. The lanes represent different wires, and the cars represent the current traveling through the wire(s). In a series circuit the total current runs through each device, In a parallel circuit the current divides , and each part runs through a different device, or wire.
Yes : but in a residential case a 15 amp circuit would be better
Because in the real world, all cells have some internal resistance and when a current runs through that resistance, there is a voltage drop.
A light bulb uses electrical energy, and produces light, as well as heat.