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Here's a useful tip to use when multiplying or dividing intergers:2 positives = positive2 negatives = positive (that's right, positive!)1 positive, 1 negative = negative
Positive and negative
A positive personality trait is a trait that is useful, liked, appreciated, and/or encouraged by others and sometimes even him or herself.However, a negative trait is a trait that is not liked and is a burden to said person and/or others.Basically, positive traits and negative traits are completely opposite in definition.For example:Vain = NegativeFriendly = Positive
An epithet is useful in describing the characteristics of a person or thing. In can be used in a positive or negative manner.
Sodium chloride is very useful. Sodium ion is the positive ion.
E-mail can be described as positive if it conveys a positive, or friendly emotion, or serves a useful purpose (or both). Unfriendly or useless e-mail could be described as negative.
They are opposites of each other. This refers to the direction of the electrical current is flowing. A battery right side up has +4.6 volts across it. Current is flowing out of the top and I to the bottom. Flip it upside down, now measured the same way you'll see -4.6 volts, meaning current if flowing into the top and out of the bottom.Additional AnswerThere is no such thing as a 'positive' and 'negative' voltage if you are referring to 'positive' and 'negative' in the sense of polarity or charge. Voltage is simply another name for potential difference, and you cannot have a positively- or negatively-charged potential difference! Presumably, what your question should ask is "What is positive and negative potential?".The potential at any point in a circuit is measured with respect to another point in the same circuit -often, this is earth (or ground). For example, a car battery's negative terminal is usually earthed to the vehicle's metal chassis, so anything connected directly to its positive terminal has a potentialof +12 V.On the other hand, 'positive' and 'negative' can also refer to sense or direction, rather than polarity or charge. Used in this sense, you can apply these terms to potential difference or voltage. For example, if a second battery acts in the same direction as another battery, then its voltage is acting in the positive sense (or direction); if it is connected to oppose another battery, then its voltage is acting in the negative sense. Applying the terms 'positive' and 'negative', in this sense, to potential differences or voltages, is useful in various electrical theorems, such as Kirchhoff's.
always a positiveMultiplying and dividing rule:(remember this; it's very useful) When you multiply or divide two numbers . . .-- If they both have the same sign, then the answer is positive.-- If they have different signs, then the answer is negative.
They are a useful energy sourceThey cause no pollution when producing energyThey are expensive to build
Absolute value is always the positive value of the number. (It is useful for measuring distances, since a negative distance in most instances is silly). For example, the absolute value of -5 is 5. (The absolute value of positive 5 is still 5.) It just makes any negative numbers positive, but does not affect numbers that are already positive.
If the battery is useful for anything its portability.
The answer depends on my WHAT! And since ye have not bothered to share that crucial bit of information, I cannot provide a more useful answer.