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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.
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What cause the voltage t lead current in an ac circuit?
Voltage leads current or, more specifically current lags voltage, in an inductive circuit. This is because an inductor resists a change in current.
A capacitive device in a single phase ac circuit causes the current waves to?
Lead the voltage waves
Why capacitor behave as open circuit against alternating current?
Capacitors store electrical charge. Imagine we have a capacitor. At time 0 seconds we connect a DC voltage across the capacitor - immediately as the voltage is connected the capacitor is at 0 volts and the maximum current (relative to the circuit resistance) flows. At this extreme the capacitor can be treated as a short circuit, so for high frequency AC volts we should treat a capacitor as being a short circuit. As time passes the current in the circuit will go down and the voltage of the capacitor will go up - this is because as the capacitor gains more charge it gains more voltage, lowering the voltage across any resistance in the circuit consequently lowering the current in the circuit. When the capacitor is virtually full no current will flow at all and the voltage across the capacitor will equal the DC source voltage. At this extreme the capacitor can be treated as an open circuit, so for low frequency AC (allowing the capacitor to fill up before the current alternates) we can treat the capacitor as being an open circuit. Technically, it is not an open/closed circuit when it comes to AC because the capacitance will results in a signal lag or lead. However, if the frequency is low/high enough the lag/lead is often negligable.
What is the relationship of current and voltage in a resistive circuit?
The current through the circuit is directly proportional to the voltage across the circuit. The proportionality constant is 1/R, where 'R' is the total effective resistance of the circuit. C = V / R V = C R R = V / C
Does the current in a pure capacitive circuit lead or lag the applied voltage?
Answer #1Just remember our friend ELI the ICE man! E is voltage, I is current, L is inductance, and C is capacitance. ELI In an inductively reactive circuit (L), the voltage (E) comes first, then the current (I) lags behind. ICE In a capacitively reactive circuit (C), the current (I) leads, then the voltage (E) comes later. Note that while your assumption (in the stated question) is correct, an engineer or electrician would not say it that way. The voltage waveform is the constant, and the current waveform is said to lead or lag. This is because reactive or non-linear loads distort the current. If you look at a power-factor meter, and it says leading or lagging, it is referring to the current. It would be more accurate to re-phrase your question: In a capacitive reactive circuit does the current lead the voltage? Yes! Answer #2: Another method I learned from one of my EE professor is that in an inductor the current lags the voltage because the electrons get dizzy going through all of those loops (coils) in the inductor and "lag" behind the voltage.
Do car batteries short out?
Yes, sometimes the lead plates will develop a short between themselves.
Do they make lithium ion batteries for wheelchairs?
yes they do, they are standard on most current models because they are smaller and last longer than lead-acid batteries, not to mention lead-acid batteries are dangerous if tampered with.
What cause the voltage t lead current in an ac circuit?
Voltage leads current or, more specifically current lags voltage, in an inductive circuit. This is because an inductor resists a change in current.
What type of current is produced by a battery?
Automotive lead acid batteries of 12 volts have six cells internally wired in series, each cell generating 2V. The positive plate is made of lead grid with a lead oxide paste coating and the negative plate is porous lead. Dilute sulphuric acid is the electrolyte. The lead acid battery produced a direct current or DC during a chemical reaction that turns lead dioxide to lead sulphate and sulphuric acid to water. During recharging the process is reversed.
What happens if wire insulation is weak?
Depending on the voltage potential that the wire is carrying, an insulation breakdown could lead to a short circuit. If this condition occurs then the circuits over current protection should trip the circuit off line.
What makes car batteries work?
The reaction of the acid and lead causes electrons to move creating a DC current.
What is the advantages of lead storage batteries?
Enormous initial current, rechargeable, cheap, low internal resistance, availability
Are lead acid batteries installed in cars in factories?
no lead acid batteries are not installed in factories only acid batteries are!!
A capacitive device in a single phase ac circuit causes the current waves to?
Lead the voltage waves
Why capacitor behave as open circuit against alternating current?
Capacitors store electrical charge. Imagine we have a capacitor. At time 0 seconds we connect a DC voltage across the capacitor - immediately as the voltage is connected the capacitor is at 0 volts and the maximum current (relative to the circuit resistance) flows. At this extreme the capacitor can be treated as a short circuit, so for high frequency AC volts we should treat a capacitor as being a short circuit. As time passes the current in the circuit will go down and the voltage of the capacitor will go up - this is because as the capacitor gains more charge it gains more voltage, lowering the voltage across any resistance in the circuit consequently lowering the current in the circuit. When the capacitor is virtually full no current will flow at all and the voltage across the capacitor will equal the DC source voltage. At this extreme the capacitor can be treated as an open circuit, so for low frequency AC (allowing the capacitor to fill up before the current alternates) we can treat the capacitor as being an open circuit. Technically, it is not an open/closed circuit when it comes to AC because the capacitance will results in a signal lag or lead. However, if the frequency is low/high enough the lag/lead is often negligable.
Does the current lead or lag the voltage in a series A C circuit containing a large value of capacitance?
ICE current leads the voltage by 90 degrees.
Are the tiny batteries in computer circuit boards contain harmful battery acids?
In general, computer batteries contain toxic substances. The acid content is not the main concern, but rather the use of elements such as mercury, lead and cadmium that cause worry.
