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2 amperes (current = voltage/resistance)

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16y ago

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When a battery is hooked up to a short circuit?

The current will increase to a very large value


What happens when a battery is hooked up to an open circuit?

When a battery is hooked up to an open circuit, no current flows because the circuit is not complete. The voltage across the open circuit is equal to the battery voltage, but no electrical work is done since there is no flow of electrons. The energy stored in the battery remains as potential energy until a complete circuit is established.


A 12 volt battery is hooked up to a circuit and a 3 times 10-3 amp total current is measured what is the total resistance of the current?

Resistance = (voltage across the circuit) divided by (current through the circuit) =12 / (3 x 10-3) = 4 KΩ


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Chemical energy in the battery is turned into electrical energy when the battery is hooked up to an electrical circuit.


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No, the battery is part of it's circuit. In fact nothing in the car will work without the battery.


Replaced a battery and hooked it up backwards it sparked and then hooked it up the proper way and the car started the next morning the battery was dead bought a new battery same thing happened help?

You hooked up the batteries in Series whch pumped allot of current thur the circuit..which probably fried the voltage regulator and probably blew the diodes on your alternator. you can have the alternator tested at an auto parts store.. but I'd replace the voltage regulator ( if its not part of the alternator ) along wth the alternator.. gpawlak1@rochester.rr.com


When battery charger was hooked to the battery the plastic on the terminal started to melt what was the cause of this?

Too much current was flowing which caused an overheating problem. Can be the battery has a dead cell, or you reversed the cables.


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Because it is suppose to start if the battery is hooked up.


How many watts does a AAA battery produce?

A battery doesn't make any watts by itself, it has to be hooked up to a load first. And even something as tiny as an AAA battery can put out some decent watts for a brief moment if hooked up to something that'll pull a lot of amps - like a short circuit.


Which component is likely to be damaged if hooked into a live circuit?

If a component is hooked into a live circuit, it is likely that the component itself will be damaged.


How do you measur ampere?

You use an "amp gauge" to measure amps in an actual circuit. It is hooked in series with the load. It can be placed anywhere in the circuit as long as it is hooked in series. Mathematically, you have to know the resistance, or wattage and voltage of a circuit. Volts=amps*resistance or amps=volts/resistance, or resistance=volts/amps. Ohms law!