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!
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.
If the positive probe of the oscilloscope is connected to the negative terminal and the negative probe is connected to the positive terminal of a DC supply, the oscilloscope will display an inverted signal. This means that the voltage reading will be negative, effectively showing the opposite polarity of the actual DC voltage. The magnitude of the reading will remain the same, but the trace on the oscilloscope will appear flipped around the zero voltage line.
To determine if the field currents in a compound generator are aiding or canceling each other, you need to consider the connection of the field windings. In a compound generator, the series field winding is connected in series with the armature, while the shunt field winding is connected in parallel. If the current in the series winding flows in the same direction as the shunt field current, they are aiding each other, enhancing the overall magnetic field. Conversely, if they flow in opposite directions, they are canceling each other, which can lead to reduced output voltage.
Quite simply, they supply electricity in addition to each other and each lead will be connected to the opposite polarity lead of the other winding... you have a short circuit. The transformer will rapidly get hot and if it has no thermal fuse, might start a fire or cause other damage.
If you mean what would happen if you connected a DC device backwards, there could be one or two things happen depending on that the device is. If it was a DC motor it would operate in the opposite direction. If it was an electronic device it could burn out some components. Or with today's electronics nothing would happen. Up until a few years ago polarity to electronic devices was crucial that it be connected correctly. In today's electronics a bypass diode is inserted into the voltage supply line that will block the current flow if the connection is reversed. This one little addition to the circuit supply has saved the frying of many electronic components.
No, opposite polarities attract, alike polarities repel.
Yes, opposite polarities attract due to the principle of electromagnetism. Positive and negative charges are attracted to each other and will come together to form a stable bond. This attraction is the basis for many interactions in the natural world.
One is north and one is south. Also they have opposite magnetic polarities.
If you connect both poles of the same battery together, it will make a short circuit, because the electricity isn't going anywhere, just in one side and back to the other, it will cause whatever you used to connect them VERY hot. Electricity is a type of energy, and MOST energy (i say most because I am not 100% positive they have found an exception in this world) will have some connection to heat. But if you plan on doing it, get a lantern battery, one of the REALLY big batteries, and lay a paperclip on the top of it, or some other conductor on both poles of the battery, and back up. And if you are gonna remove it, wear an oven mitt :D
It signifies that the two charges have equal magnitudes and opposite polarities.
The windings of the armature are constantly cutting magnetic lines of force of opposite polarities
A compass needle is actually a weak magnet. Because in magnetism opposite polarities attract while like polarities repel, the needle's north pole seeks the earth's south pole and vice versa.
The opposite could be together, joined, connected, or collected.
they're connected like plus and minus are although they are the exact opposite they are connected.
wired
The opposite is together, in a group, or en masse.
They get repelled away from the negative charge(-) because electrons have anegative charge(-).The rule is that same polarities, in this case (-) and (-), repel each other and opposite polarities, (+) and (+), attract each other. (+) and (-) atom bonding is called Ionic bonding because the atoms have to be ions, either cations(+), or anions; to electromagneticallybond.