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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
What else can I help you with?
What effect are there when resistance is increased in the size of the current?
Current is inversely proportional to resistance. If you double the resistance, you halve the current. Ohm's Law: Volts = Amps * Ohms Solve for Amps: Amps = Volts / Ohms
What is the amperage in an electric circuit when the voltage 120 volts and the resistance is 40 ohms?
Ohm's Law states Voltage = Current x Resistance. You rewrite the equation as Current = Volts / Resistance to solve for current.
What muct be known to calculate current using Ohm's law?
I(current) = V(voltage)/R(resistence) Example : 220 V / 5000 Ohm = 0.044 A (Ampère) = 44mA
What is the correct calculation for voltage if the resistance is 3 ohms and the current is 4 amps?
What you are talking about is the electrical potential, or voltage, necessary to produce a current of 4 amps through a material with a resistance of 3 ohms. The typical way to solve such a problem is by using Ohm's Law, stating that the current produced is proportional to the potential across the resistor but inversely proportional to the resistance. In other words, I = V / R, where I is the current in amps, V is the electrical potential in volts, and R is the resistance in ohms. Here we know R and I, so we rearrange this equation to get V by itself: V = I * R. So, to get the answer, multiply your 4-amp current by your 3-ohm resistance, and you will get 12 volts.
I'm using a 18.5 volts 3.5 amps charger to charge a 12 volts battery I want to reduce voltage to 15 volts and current to about or a little less than 2 amps How to reduce charging current and voltage?
You need a regulator.
What is the current from 30 watts at 120 volts?
Using the formula P = IV (power = current x voltage), you can rearrange it to solve for current: I = P/V. Plugging in the values, the current would be 0.25 amps (30 watts / 120 volts = 0.25 amps).
What effect are there when resistance is increased in the size of the current?
Current is inversely proportional to resistance. If you double the resistance, you halve the current. Ohm's Law: Volts = Amps * Ohms Solve for Amps: Amps = Volts / Ohms
What is the amperage in an electric circuit when the voltage 120 volts and the resistance is 40 ohms?
Ohm's Law states Voltage = Current x Resistance. You rewrite the equation as Current = Volts / Resistance to solve for current.
How many amps DC is 12 volts 1.5 amps at 5 volts?
To calculate the amperage at 12 volts based on 1.5 amps at 5 volts, you can use the formula P=IV (Power = Current x Voltage). First, find the power at 5 volts (P=1.5A * 5V = 7.5 watts). Then, using P=IV at 12 volts, solve for current (7.5W = I * 12V => I = 0.625A). So, at 12 volts, 1.5 amps at 5 volts translates to approximately 0.625 amps.
What is the resistance of a lamp operating at 115 volts and using 0.25 amperes of current?
The resistance of a lamp operating at 115 volts and using 0.25 amp of current is 460. The relationship I used is Ohm's law.
How to Divide 160 watts into 120 volts?
To find the current, use the formula: Power (W) = Voltage (V) x Current (A). Rearrange the formula to solve for current: Current (A) = Power (W) / Voltage (V). Therefore, 160 watts divided by 120 volts equals 1.33 Amps.
What muct be known to calculate current using Ohm's law?
I(current) = V(voltage)/R(resistence) Example : 220 V / 5000 Ohm = 0.044 A (Ampère) = 44mA
What is the correct calculation for voltage if the resistance is 3 ohms and the current is 4 amps?
What you are talking about is the electrical potential, or voltage, necessary to produce a current of 4 amps through a material with a resistance of 3 ohms. The typical way to solve such a problem is by using Ohm's Law, stating that the current produced is proportional to the potential across the resistor but inversely proportional to the resistance. In other words, I = V / R, where I is the current in amps, V is the electrical potential in volts, and R is the resistance in ohms. Here we know R and I, so we rearrange this equation to get V by itself: V = I * R. So, to get the answer, multiply your 4-amp current by your 3-ohm resistance, and you will get 12 volts.
I'm using a 18.5 volts 3.5 amps charger to charge a 12 volts battery I want to reduce voltage to 15 volts and current to about or a little less than 2 amps How to reduce charging current and voltage?
You need a regulator.
How many Watts in 200 Volt?
To determine Watts from Volts, you also need to know the current in Amperes (A) using the formula: Watts = Volts x Amperes. Therefore, 200 Volts alone cannot be converted into Watts without knowing the current. For example, if the current is 10 Amperes, then the power would be 200 Volts x 10 Amperes = 2000 Watts.
What is the value of current at zero volts?
Zero volts produces zero current.
Which current used in cars?
12 volts DC current except the current to the spark plugs which can be 12,000 volts up to as much as 45,000 volts.
