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Watts, Amps, Volts.
The formula is simple:
P=VI
Power (in watts) equals volts times amps. For example a if a light bulb is powered by 110 volts and produces 60 watts you can determine that 60/110 or about .55 amps is going through the light bulb. 60=110 X 0.55 W = E x I, W = I2 x R, W = E2/R
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What is the cost of using a 100 watts 220 volts lamp for twenty hours at three pesos per kilowatt hour?
6 pesos.
What is the procedure to convert kilowatts?
For watts to kilowatts move the decimal place three places to the left. 500 watts = .500 kW. For kilowatts to watts move the decimal point three places to the right. 1.5 kW = 1500 watts.
Independent and dependent are types of what?
Independent and dependent are types of variables. These variables are used mostly in science and math. When using independent variables you can control them dependent variables you cannot.
What is the difference between using 100 watts for 2 hours or 50 watts for 4 hours?
In theory, no difference.
Why are some appliances rated in watts and others amps?
When they give you WATTS the also give you VOLTS. Using some very simple math you can then figure out AMPS. WATTS = Amps x Volts
How much can a 15W circuit breaker handle?
Answer for the US: Breakers are rated in amps, not watts. However, a 15A breaker can handle 15 amps, or about 1800 watts (using 120V), or 3600 watts (using 240V). However, this is only rated for noncontinuous loads (those not lasting for more than three hours). For continuous loads (loads lasting three hours or more), one must derate the circuit breaker by 80%. So for continuous loads, that same breaker should only have 1440 watts (using 120V), or 2880 watts (using 240V) on it.
How do you solve 3 dimensional equations?
You can solve the system of equations with three variables using the substitute method, or using matrix operations.
How do you solve for current using volts and watts in a problem?
Amperes measure the rate of flow of electricity in a conductor Volts measure electrical pressure Watts measure the amount of energy or work that can be done by Amperes and Volts Relationship: Work = Pressure x Flow or Watts = Volts x Amperes When you know two variables you can calculate the other Formulas - This formula referred to as the West Virginia Formula (W - VA)Watts = Volts x Amps Volts = Watts / Amps Amps - Watts / Volts Refer to link below for more information
How many variables are tested during an experiment?
There are three types of variables tested: manipulated variables, controlled variables, and experimental variables.
What are the three variables that play an important role in a Practical Investigation?
Independent Variables, Dependent Variables and Extraneous Variables.
How can you represent values using variables?
You can represent values using variables. This can only be done with whole numbers.
In java all variables declared using a class are?
Reference variables
What type of linear programming can be found by graphical methods?
A linear programming question with two variables. Problems with three can be solved if there is a constraint that reduces them to effectively two variables. Linear programming with 3 variables, using 3-d graphs is possible but not recommended.
What is the cost of using a 100 watts 220 volts lamp for twenty hours at three pesos per kilowatt hour?
6 pesos.
What are the three variables in a scientific experiment?
There are 2 variables and they are independent and dependant.
When did light bulbs start using watts?
Light bulbs have always used watts.
What is the procedure to convert kilowatts?
For watts to kilowatts move the decimal place three places to the left. 500 watts = .500 kW. For kilowatts to watts move the decimal point three places to the right. 1.5 kW = 1500 watts.
