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wakejosh
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Homework Statement
you measure a 20v potential difference across a 5 ohm resistor. what is the current?
The Attempt at a Solution
20 v/5 ohms = 4 v
is this correct? thanks.
An Ohm resistor is an electronic component that is used to resist the flow of electrical current. It is measured in units of Ohms (Ω) and is typically made of a conducting material such as carbon, ceramic, or metal.
An Ohm resistor affects current by restricting its flow. This is known as resistance. The higher the resistance, the lower the current will be. Ohm's law states that the current (I) flowing through a resistor is directly proportional to the voltage (V) applied and inversely proportional to the resistance (R) of the resistor (I = V/R).
The relationship between Ohm resistors and voltage is described by Ohm's law. It states that the voltage (V) across a resistor is directly proportional to the current (I) flowing through it and the resistance (R) of the resistor (V = I*R).
To calculate the resistance of an Ohm resistor, you can use Ohm's law (R = V/I), where R is the resistance in Ohms, V is the voltage across the resistor, and I is the current flowing through the resistor. You can also use the color code on the resistor to determine its resistance value.
Ohm resistors have a wide range of applications in electronics. They are commonly used to limit current flow, to stabilize voltage levels, and to divide voltage in circuits. They are also used in sensors, amplifiers, and power supplies, among other electronic devices.