How is voltage measured? We’ll tell you

In 1827! the German mathematician and physicist Georg Simon Ohm created one of the essential laws of electrodynamics. We are referring to Ohm’s law ! according to which “in an electric circuit! the intensity of the current that runs through it is directly proportional to the applied voltage and inversely proportional to the resistance that it presents” .

However! as we told you at the beginning of the article! we want to benefits of sms marketing explain all these concepts to you in the simplest way possible. Therefore! keep in mind that Ohm’s law is a mathematical formula to establish the relationship between current! voltage and resistance in an electric circuit.

We have already discussed voltage

We still have two concepts to review:

Current : The amount of electricity flowing through a conductor per voltage measured unit time. It is measured in amperes.

Resistance : the difficulty that the current encounters in passing through a circuit! which causes the charge to slow down. Resistance is measured in ohms ( Ω) and was discovered by Ohm himself. For example! in the case of a river! the resistance would be the stones or vegetation that the water encounters in its path.

The formula is as follows:

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If you have an electrical appliance with a voltage of 110 V and a resistance overcoming the challenges of telemarketing of 40 Ω! would you be able to tell how much current it is? Using Ohm’s law it’s easy:
I = 120/40! which gives us the result of 3 A (amps).
The concept of voltage and other doubts
One of the most common mistakes is confusing volts with watts or amps. As they are also essential in the world of electricity! we want to talk to you about them briefly so that you know the differences.

What are amps? How do they differ from volts?

Let’s start at the beginning. Ampere is the unit that measures the intensity of a current or the capacity of an electric charge. Its name is a tribute to the French mathematician and physicist André-Marie Ampère ! inventor of the first electric telegraph.

The ampere-hour (abbreviated Ah) is therefore the amount of energy that can flow through a circuit for one hour of time.

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If you imagine a river! amperes would be the flow or intensity of the water! that is! the liters that flow through the river. Remember that volts would be the difference in height on the ground that prevents the river water from stagnating and can flow from the mountains to the sea.

Are watts also different from volts?
Watts (symbol W) are the units that measure electrical power. In other words! the energy supplied in a specific period of time.

This power is obtained by multiplying the aob directory voltage (measured in volts) and the current (measured in amps):

Watts (W) = Volts (A) x Amps (A)

When a person says “I have consumed 200 kW this month”! they should actually say “I have consumed 200 kWh”! because it is the power consumed per hour.