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What are Ohms Law and the Power Law?
Ohms Law is used for the measurement of resistance. You can find the resistance in a series circuit using this equation; amps=volts/resistance or volts=amps x resistance.The Power Law is used to find the wattage in the circuit. You can find the amount of watts using this equation: watts=volts x amps.CommentOhm's Law has nothing whatsoever to do with either resistance or power.The equation, R = E/I, is derived from the definition of the ohm, and not from Ohm's Law.Ohm's Law simply describes a linear relationship between the potential difference across a conductor and the current through it. It does NOT describe the relationship between potential difference, current, and resistance.
How can you find electricity units from ampere?
Multiply the amperage times the volts. This will give you the wattage. There are 2 formulas that are, together, considered Ohm's Law. They are: E(volts) equals I(amps) times R(resistance), and P(power, or watts) equals I(amps) times E(volts), which is what is stated above. From these two formulas and with the application of algebraic manipulation you get a total of 12 equations that can be used to determine most answers to technical electrical questions.
What is the difference between ohms and volts?
ohms is the unit of resistance while volts is the unit of voltage
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 much heat is generated by 1 amp?
The heat generated by an electric current is in watts, Current x volts. So current alone is not enough to define it. By Ohms Law, Volts = Current x Resistance, so another way of expressing watts is (Current squared) x Resistance. If you know the current andthe resistance you can get the wattage, which will give you the heat generated.
How much power is consumed by a 6 ohm load with 12 volts applied?
Volts = Amps x Resistance Therefore Amps = Volts / Resistance
How do you measur ampere?
You use an "amp gauge" to measure amps in an actual circuit. It is hooked in series with the load. It can be placed anywhere in the circuit as long as it is hooked in series. Mathematically, you have to know the resistance, or wattage and voltage of a circuit. Volts=amps*resistance or amps=volts/resistance, or resistance=volts/amps. Ohms law!
How is the rating of a light bulb determined for instance 100W 60W is that how many watts an hour to run it?
No, the wattage is determined by the resistance of the filament in the light bulb. The formula to determine the wattage is Watts = Voltage (squared)/Resistance in Ohms. To find the resistance of a 120 volt light bulb use the formula, Resistance in Ohms = Voltage (squared)/Watts. So for a 100 watt bulb at 120 volts the resistance is 120 volts x 120 volts = 14400/100 = 144 ohms. For a 60 watt bulb at 120 volts the resistance is 120 volts x 120 volts = 14400/60 = 240 ohms. As you can see this holds true to Ohm's law, current is inversely proportional to the resistance of the circuit. The higher the resistance of a load, the harder it is for the current to flow. In this case less current results in less light being emitted from the filament in the light bulb.
What happen if you deliver 5v to a 12v device which is supposed to deliver 168watt with different amperage from 1A to 5A and not 15A?
Ohms law states current is directly proportional to the volts and inversely proportional to the resistance of the circuit. What will happen if you apply 5 volts to a 12 volt, device the amperage will drop proportionally. The wattage output will drop from 168 watts to 30 watts. The device fed with 12 volts and has an output of 168 watts will draw 14 amps. This calculates the resistance to be .85 ohms. The same device fed with 5 volts reduces the amperage to 6 amps resulting in an output wattage of 30 watts. Since the resistance remains the same no mater what, the only way to move the amperage value is to vary the voltage level.
1000 volts light how much watt?
dear,wattage = voltage x amperageAmperage, also called current, is the amount of electrical energy flowing through an appliance at any given time. This measurement is expressed in units called amperesvinayak hegde
What is cheaper to run a electric fireplace on a 120 volts or 240 volts outlet?
Voltage does not affect the cost to run. You pay for the wattage, the higher the wattage the more it will cost to run.
Is using 110 volts cheaper than using 230 volts?
no its desame depending on wattage of loads
What is the Formula of volte convert into amp?
V/R = I meaning, Voltage (in volts) divided by Resistance (in Ohms) equals Current (in Amperes, a.k.a. Amps
What heat can a small copper coil produce at 120 volts?
The amount of heat generated by a small copper coil at 120 volts would depend on factors such as the size of the coil, its resistance, and the current flowing through it. You can use the formula P = V^2 / R to calculate the power (heat) generated, where P is power in watts, V is voltage in volts, and R is resistance in ohms.
How can you convert amperes in to volts?
Amperes does not convert into volts they are two different values. Become familiar with the following formula and look at the relationships between the values. Volts = Amps x Resistance, Amps = Volts / Resistance and Resistance = Volts / Amps.
What formula can be used to find wattage?
Watts= Volts x Amps
