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How are the plus and minus voltage signs determined for resistors?
Wiki User
∙ 7y ago
Resistors have no polarity.
The voltage across a resistor is determined by the direction of current flowing through that resistor (and vice versa).
Wiki User
∙ 7y ago
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Does the neon power supply for those beer signs in bars output high voltage AC or DC?
High Voltage AC.
Can kirchoff's voltage law be used to determine voltage drop?
Yes. Kirchoff's Voltage Law states that the signed sum of the voltage drops going around a series circuit is zero. Thus, if you know all but one, you can figure it out. You simply add what you know up, and what is left is the last drop. Don't forget to be consistent in your use of signs. If, for instance, you show a voltage or current source as a voltage rise, then it must be considered to be a negative voltage drop. Or vice versa, as the case may be.
How do you know if a transformer is a step up transformer?
You will most likely see a 'step-up' transformer on neon signs. The next time you're at a restaurant or bar, look at their neon sign. You'll see a black box (4" x 4" x 6"w) connected to the sign (usually). This is the transformer, and it takes 120 volts AC and steps it up to 7500 to 10,000 volts AC. This excites the neon gas and causes it to glow.AnswerA step-up transformer transforms voltage to a higher level. Like 120 volts to 277 volts.AnswerIt is type of transformer which is used to step up the voltage from low to high value in order to make it applicable for high rated appliances.Not only for high rated appliances but also for transmission in power distribution systems. It is critical in this role. Power distribution systems depend heavily on step-up transformers to generate the high voltages needed for more efficient long-distance power distribution. (And yes, there are step-down transformers at the other end to make the voltages more "user friendly" and less dangerous.)
Why do signs say Danger High Voltage instead of Danger High current?
Electricity is transferred with high voltage and low current to reduce transmission loss ( I2R , where R= resistance of wire). As high voltage is present in transmission lines, Danger-high voltage is written.
How many amps in 8 ohm using ohm's law?
You must know the applied voltage to determine the answer. According to Ohm's law: I = E/R (current equals voltage divided by resistance) So, if the voltage were, say, 16 volts, then the current through the 8 ohm resistor would be two amps: 2 = 16 / 8
What is the product of 5?
Because of the three minus signs, i.e. an odd number of minus signs, the answer is negative.
What is the product of 53?
Because of the three minus signs, i.e. an odd number of minus signs, the answer is negative.
What is an expression that are set apart by plus or minus signs?
Terms are in expressions that separate by plus or minus signs. The answer is TERMS.
Does plus minus mean plus?
Same mathematical signs equal plus Different mathematical signs equal minus Plus Plus = Plus (+)(+) = + Minus Minus = Plus (-)(-) = + Plus Minus = Minus (+)(-) = - Minus Plus = Minus (-)(+) = - So the direct answer to your question would be: plus minus equals minus
Why is minus into minus a plus?
Because both minus signs to be cut therefore minus * minus will be treated as plus numbers
Why is there 2 minus signs at the start of a Trim Excel formula?
All functions in Excel start with the = sign. So you may be mistaking that for two minus signs. A minus sign will have no impact on an TRIM function as it is a text function.All functions in Excel start with the = sign. So you may be mistaking that for two minus signs. A minus sign will have no impact on an TRIM function as it is a text function.All functions in Excel start with the = sign. So you may be mistaking that for two minus signs. A minus sign will have no impact on an TRIM function as it is a text function.All functions in Excel start with the = sign. So you may be mistaking that for two minus signs. A minus sign will have no impact on an TRIM function as it is a text function.All functions in Excel start with the = sign. So you may be mistaking that for two minus signs. A minus sign will have no impact on an TRIM function as it is a text function.All functions in Excel start with the = sign. So you may be mistaking that for two minus signs. A minus sign will have no impact on an TRIM function as it is a text function.All functions in Excel start with the = sign. So you may be mistaking that for two minus signs. A minus sign will have no impact on an TRIM function as it is a text function.All functions in Excel start with the = sign. So you may be mistaking that for two minus signs. A minus sign will have no impact on an TRIM function as it is a text function.All functions in Excel start with the = sign. So you may be mistaking that for two minus signs. A minus sign will have no impact on an TRIM function as it is a text function.All functions in Excel start with the = sign. So you may be mistaking that for two minus signs. A minus sign will have no impact on an TRIM function as it is a text function.All functions in Excel start with the = sign. So you may be mistaking that for two minus signs. A minus sign will have no impact on an TRIM function as it is a text function.
How do you add numbers with different signs?
You add all the numbers with + signs and subtract all that have minus signs.
What are the two signs of angle?
Plus and minus.
When you calculate percent error you can ignore the?
Plus and Minus Signs
What are the signs symbols found in keyboard?
plus and minus
What century did mathematicians first use plus and minus signs?
15th Century by Johannes Widmann
Do two plus signs make a minus?
In addition and subtraction, if the plus sign is larger than the minus sign, then it's a plus. For example: +10 minus -20 = -10 If the plus sign is smaller than the minus sign, the answer will be a minus. For example: -10 minus + 20 = -10 In multiplication, if you have 2 plus signs, the answer will be a plus sign. If you have 2 minus signs, the answer will be a plus sign then, too. But if you have a plus and a minus sign, then the answer will be a minus. For example: +5 x + 2 = +10 -5 x - 2 = +10 -5 x +2 = -10
