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If you connect each pole of one battery to the opposite pole of the other, you will have completed an electrical circuit, and electricity will flow. If you leave them attached like that, eventually you will drain both batteries. It's also possible that one or both batteries could explode due to the heat produced by this rapid flow of current. The above may take place when the voltage is low. but in case of relative high voltage the following phenomenon is likely: According to universally recognized, Ohm's law: i = v/r (where i = current, v = voltage, and r = resistance) When two poles are connected through a simple wire (assumed to of no resistance) the result of the above expression becomes infinite (anything divided by zero). That means infinite current flows which may cause explosion/big spark/fire with a loud report.

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Q: What happens when opposite terminals of two batteries are connected directly?
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If 2 batteries in a simple circuit are arranged neg to neg terminals touching will the bulb light?

If you put two batteries of the same voltage with like terminals touching each other in series the equal, but opposite voltages will cancel each other and the light bulb will not light, because there is no current flowing through it.


What will happened if cells were connected in parallel connection but in opposite polarities?

You would get a high circulating current through both cells, possibly enough to do significant damage to both the cells and to you, depending on the capacity of the cells. Technically, they would actually be connected in series, not parallel!


What is the opposite of a parallel circuit?

It is not the "opposite" but the major alternative to parallel, which is a series circuit. In parallel circuits, each component has its own circuit path (input to output), while in series the components are connected to one another in a line.


What do you mean by Polarity of a transformer?

Transformer polarity is the direction the secondary goes relative to the primary, or relative to another secondary. Usually, polarity does not matter, for example in the case where the secondary is connected to a rectifier / filter / regulator. Sometimes, it does matter, particularly if there are two secondaries used to provide DC isolation between a preamp and a final amplifier in push-pull configuration. It can also matter if the overall circuit is involved in a feedback loop and phase inversion is a factor.AnswerWhen applied to transformers, the term 'polarity' describes the direction in which the secondary voltage is acting relative to the direction of the primary voltage. Polarity is determined by the directions in which the primary and secondary windings are wound relative to each other.Polarity is described as being either 'additive' or 'subtractive', and can be determined by of connecting one pair of primary and secondary terminals together. If the voltage measured between the other adjacent primary and secondary terminals is greater than the primary voltage, then the transformer has 'additive' polarity; if the voltage is less than the primary voltage, then the transformer has 'subtractive' polarity.Knowing the polarity of individual transformers is important when two single-phase transformers are connected in parallel with each other because, if polarity is ignored, then an incorrect connection might result, causing a large circulating current through the two secondary windings.


How you can connect three single phase transformers as a three phase transformer Y to Y?

You can not unless the installation is a motor and cost is not important. Depending on the amount of money you want to spend to make this happen there is a device on the market called a VFD ( Variable Frequency Drive). On the three phase input terminals you apply your single phase voltage. On the output terminals you connect your three phase motor. When run in this configuration there is an internal switch that has to be changed to let the VFD know that it should be looking for only two lines on the input to be hot. Other wise the VFD thinks that there is a line loss on the three phase input terminals and the unit will not start.

Related questions

How do you place charging leads to two 6 volt deep cycle batteries that are in series?

If the charger is a 12 volt DC machine, connect the leads to the two battery terminals that the load is taken from. Take care to note the polarity of the leads to the polarity of the battery terminals. There will be a short jumper cable between the two six volt batteries. The charger leads go on the opposite terminals of the two batteries that the jumper is connected to.


If 2 batteries in a simple circuit are arranged neg to neg terminals touching will the bulb light?

If you put two batteries of the same voltage with like terminals touching each other in series the equal, but opposite voltages will cancel each other and the light bulb will not light, because there is no current flowing through it.


What are semiconductor resistors?

Semiconductor resistor is a resistor body formed in a semiconductor substrate. The first and second conductive terminals are electrically connected to the resistor body at opposite ends.


What is the opposite of apart?

The opposite could be together, joined, connected, or collected.


How is multiplication and division are connected?

they're connected like plus and minus are although they are the exact opposite they are connected.


What is the opposite of directly?

indirectly


On a dart board what number is directly opposite No 1?

In my opinion the 19 is directly opposite of the 1


What is the opposite of implicit?

The opposite of implicit (implied) is explicit (directly expressed).


What country is directly opposite Australia on earth?

Traditionally (and inacurately) the British Isles. In truth there is no land mass directly opposite (antipodal to) Australia.


What is opposite the number 10 on a dart board?

Directly opposite 10 is 14.


What is the opposite of lonely?

The opposite is together, in a group, or en masse.


Using a led toggel switch as a ground switch with positive connected directly to battery is there any way to get the led to light?

Toggle switch with LED should have 3 terminals wire LED termimal to the opposite to which is being switched i.e. if you are switching ground then wire hot to illumination terminal Unfortunately this will not work for illuminating the LED. LEDs are diodes and only allow electricity to flow one way and won't light up like an incandescent bulb.