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Why are batteries have different sizes but are of the same voltage?
Wiki User
∙ 13y ago
Dry Cell batteries are different sizes because of different applications they are used for. For an egsample a little remote control car may take 2 or 4 AAA batteries because of space and weight issues if you used 2 or 4 AA. Also industrial uses may require a bigger battery for longer lasting and for it to produce a certain ammount of electricity over a period of time. If you just used 50 AA's to start your car in the morning you may fry the ignition because it is too much power. while Car batteries only produce a certain ammount because they are manufactured to.
Wiki User
∙ 12y ago
Wiki User
∙ 13y agoThe total current needed from the battery determines the size;
big batteries are needed to start your car (very high current demand for a short time)
or for remote instruments left in place (low current but for a long time).
Further Information
The open-circuit potential difference produced by a cell is a function of the materials used in the manufacture of its electrodes, and has nothing whatsoever to do with it physical size.
The electrochemical series of metals lists the potentials of various metal electrodes in comparison with a hydrogen electrode, which serves as a zero reference. For example, the simplest cell has a copper electrode and a zinc electrode. From the electochemical series, the potential of copper is found to be +0.34 V, and the potential of zinc is found to be -0.76 V. So, the potential difference between a copper and zinc electrode will be 0.34 - (-0.76) = 1.1 V.
The physical size of a battery (e.g. AAA, AA, etc.), providing they are of the same type, is a measure of the cell's charge capacity (expressed in ampere hours) and not of its emf.
Read more: http://wiki.answers.com/Voltage_of_a_D_size_battery#ixzz1Bc3dcHZo
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Does a bulb light up if you use batteries with different sizes?
If you are talking about batteries of different physical sizes but of the same voltage then the answer is yes. The light bulb requires a specific voltage to operate. As long as the batteries add up to the voltage that the bulb requires, the lamp will light properly. Larger batteries usually have a greater operational capacity. The load being of equal amperage draw, the D cell load will operate longer than a AAA cell load.
How do you connect 2 6 volt batteries in parallel to make 12 volts?
If you connect 2 six volt batteries in parallel it will still give you six volts but it will give you twice the cranking power. To obtain twelve volts from the two six volt batteries they will have to be connected in series.
Can you wire 12 volt agm but different amp hour batteries in series?
Yes, but know that when connected in series you will increase the voltage but the amps will stay the same as one battery. If you wire them in parallel you increase the amps but the voltage stays the same. Example: Connect two 12 volt batteries in series and you then have 24 volts with the same amperage as one battery. Connect two 12 volt batteries in parallel and you will have 12 volts but the amperage will double.
How many volts do 3 AA batteries supply?
A single AA battery will produce 1.5 volts. In series the voltage is additive. In parallel the voltage remains the same but the batteries total capacity is increased.
How does the number of turns affect the strength of the electromagnet?
i think it's not on the size but rather on the voltage capacity of the battery.. usually bigger batteries have higher voltages that's why we may relate it to their size, but there are some batteries despite being small in size have higher voltages. if we are comparing two batteries of different sizes but with the same voltages, maybe the question is which one will last and would sustain your magnet longer.. but in terms of power, they are the same
Does a bulb light up if you use batteries with different sizes?
If you are talking about batteries of different physical sizes but of the same voltage then the answer is yes. The light bulb requires a specific voltage to operate. As long as the batteries add up to the voltage that the bulb requires, the lamp will light properly. Larger batteries usually have a greater operational capacity. The load being of equal amperage draw, the D cell load will operate longer than a AAA cell load.
Are car batteries interchangeable?
the voltage is the same 12v (some have more amps) and the terminals are all the same size - but the battery cases are all different sizes. if the battery physically fits in the battery pan (holder) and the hood closes - its safe to use.
When batteries are connected in parallel what happened with their voltage?
The voltage remains the same.
Does a D cell battery have more voltage than an A cell battery?
this question is missing information and therefor makes no sense
Are there different sized car batteries, or are they all the same?
Cars all have different requirements and specifications and this includes the battery. There are both top and side post batteries in a number of sizes and amps.
What happens if you connect two batteries of the same voltage positive pole to positive and negative to negative?
If the batteries have EXACTLY the same voltage, then nothing will happen, because there will be no voltage drop in the circuit, and hence no current. If the batteries have SLIGHTLY different voltages, then there will be a voltage drop in the circuit. Since there is low resistance, there might be high current, causing damage and/or an explosion. In all probability, however, there is enough internal resistance in the batteries to simply cause them to equalize in voltage.
What will happen if you connect 2 batteries with same voltage in series?
You will get double the voltage.
What happens to the voltage if batteries if they are setup in a parallel and a series circuit?
Assuming all of the individual batteries are the same voltage, if arranged in a parallel circuit the voltage is the same as any one battery. If arranged in a series circuit the voltage will be the sum (the total) of all of the batteries added together.
How are circuits connected when you are using more than one battery?
The batteries can be connected in parallel or in series. In parallel, good batteries of the same voltage will have a total voltage across them equal to the voltage across one of them. Those batteries in series will have a total voltage equal to the sum of the voltage of each of the batteries.
What is the amp on a 2 12 volt batteries connected in series?
Series: Double the voltage of one of the batteries if they are the exact same size. Amps stay the same as one of the batteries. Parellel: Double the amps and voltage stays the same as one battery.
Are all cells and batteries the same size?
No, batteries and the electrochemical cells that make them up come in sizes from much smaller than a tiny button to much larger than a walk in closet, depending on their purpose, voltage, current ratings, and ampere hour capacity! They can weigh less than a gram to several tons!
If we connect tha 2 v battery in parallel so what happend?
If you connect any 2 batteries with the same voltage in parallel the voltage stays the same as one of the batteries but the current doubles.
