As the power system and people’s relationship is getting closer and closer, more and more people realize that in today’s time to master a certain electrical knowledge has become a life must, from the daily maintenance of small household appliances to the size of the home solar energy system selection, design. In fact, regardless of the size of the power system, its design to the basic knowledge is the same. In order to better understand the workings of an electrical system, we need to learn about various physical quantities and the conversion relationships between them, and today we need to learn about the conversion from watts to amperes.
A watt is a unit of power. It is often used to describe how much energy an appliance requires to do its job. the higher the wattage, the more energy it requires to operate, and conversely, the lower the wattage, the less energy it requires to operate. 1w is defined as 1Wh of energy per hour of operation. e.g., a refrigerator with a wattage of 2,000w requires 2,000Wh of energy per hour of operation.
An ampere is a unit of current. It is often used to describe how fast a charge moves in a circuit. From a microscopic point of view, it indicates how much charge passes through a section of a circuit in an instant.
The volt is a unit of voltage, which is often used to describe the amount of charge carried by a current through a section of a circuit, i.e., the magnitude of the current force. The greater the value of the volt in a circuit, the greater the force of the current in that circuit, and conversely, the smaller the value of the volt, the less the force of the current in that circuit.
From a microscopic point of view, it is a unit used to measure a unit of electrons in the electric field due to different TV produced by the energy difference between the number of units, the size of its value is equal to a unit of positive charge due to the action of the electric field force from one end of the circuit to the other end of the amount of work to be done, and therefore can be said that the volt is the potential energy potential.
Although the watt and the ampere are both units used to measure forms of electrical power, there are significant differences: the watt is a unit of electrical power, while the ampere is a unit of current within a circuit. Therefore, watts cannot be directly converted to amperes, and in order to do so, we must introduce an intermediate physical quantity, namely: the volt. The volt is the unit of voltage and according to Watt’s law has:
P (w) = V (v) x I (A)
The formula for converting watts to amperes can be obtained by morphing the above equation:
I (A) = P (w) ÷ V (v)
In order to help you better understand and grasp the formula, we will illustrate the specific use of the formula with an example below. When you buy a household refrigerator with a power of 3300w, and the voltage of the household power supply is known to be 110v, then the operating current of the refrigerator is 3300w ÷ 110v = 30A.
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