Watts is the SI unit of power, and Volts is the SI unit of potential difference.
When we go to the electricity shop, we find a 9 Volt battery, 9 Watts bulb, and so on. However, we come across a question as to why there are so many units like Watts, Volts, Ampere, etc.
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The units like Watts and Volts have a difference.
Power is measured in Watts, while voltage in Volts. There is a difference between Watts and Volts. In this article, we will learn about the difference between Watts and Volts in a detailed manner.
Now, let’s discuss the difference between Watt and Volt in tabular form:
The amount of work a body can do in a unit of time is called power. In simple words, power is the rate of performing any task.
The formula for power is :
Power = Work/Time
Thus the power of an agent measures how quickly it can do the work/job. When you take less time in doing any work, it means you have great power. If in case, you take a large amount of time to do the same work, it means you have less power.
So, power is inversely proportional to time.
There are various formulas for power; these are:
V x I
In unit: Volts x Ampere
Volt-ampere is the apparent power.
In unit: Work/time
Joule per second
P = F . v
In unit: Force x velocity
N . m/s
Voltage is called the electric tension or the electrical pressure, which pushes charged electrons from one end to the other in a specified direction inside the circuit.
On connecting the battery to the circuit, the potential difference develops across the two points of the circuit. The difference developed, leads to the pushing of an electron.
So, the potential difference between the two points is measured by the amount of work done in moving a charge from one point to the other.
There are various formulas for voltage; these are:
In unit: Watt/Ampere
In unit: Ampere x Ohm
In unit: Joule per coulomb
The below table lists the difference between Watts and Volt Ampere:
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1. What is the difference between Watt and Volt Ampere?
Watt refers to actual or real power, whereas Volt Ampere refers to apparent power. They both have the same formula, i.e, a voltage (V) multiplied by Ampere (A).
Therefore, a device or instrument measuring 4 Amperes at 130 Volts would be rated to 520 Volt Amperes or 520 Watts.
2. How do you convert Watts into Volts?
We know that the formula for converting Volts into Watts is:
W = A * V
For example, if a current of 5 A flow through the circuit at 30 V, then the power generated is:
P = I * V = 5 * 30 = 150 W
This is how we can convert Watts into Volts.
3. Do more watts mean brighter light?
Watts are the product of current and voltage.
So, the Wattage of the light is the amount of energy it takes to produce a definite amount of light. The more is the wattage, the brighter is the light.
For example, 100 Watt incandescent lamp produces between 1700 and 1800 lumens of brightness by using 100 Watts of energy per hour per Joule.
4. What is Watt equal to?
In international systems, Watt is the SI unit of power. It is equivalent to 1/746 Horsepower.