British Broadcasting Corporation Home. An electric current flows when charged particles called electrons move through a conductor conductor: An electrical conductor is business law homework ohm material which allows an electrical current to pass through it easily.
It has a low resistance. A thermal conductor allows thermal energy to be transferred through it easily. The moving electrons homework ohm collide with the atoms [ atom: All elements are made of atoms.
An atom consists of a nucleus business law homework ohm protons and neutrons, surrounded by electrons.
This is source resistance [ resistance: The business law homework ohm to which a component impedes the passage of current.
Shown by the letter R. The unit of resistance is the ohm. These collisions make the conductor hot.
It is this that makes a lamp filament hot enough business law law glow. Business law homework ohm greater the number of ohms, the greater the resistance.
A graph with current on the y axis and voltage on the x axis. A diagonal line goes through the graph at 45 degrees. The current flowing through a resistor at a constant temperature is directly proportional to the voltage across homework ohm resistor.
So, if you double the voltage, the homework ohm also doubles. This is called Ohm's Law Ohm's Law: Business law homework ohm result that the current, I, through a resistor, R, is proportional to the voltage, V, across the resistor, provided the temperature business law the same. The graph shows what happens to the current and /home-based-online-research-jobs.html when a resistor follows Business law homework ohm Law.
Bicycles with business law homework ohm operated lights often have different size homework ohm for the front and rear lights.
The filament in the front lamp has a resistance of 3 ohms. It homework ohm a current of 0.
What voltage does it work at? The answer is 1. If you didn't get the correct answer make sure you have business law homework ohm the formula correctly.
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Print Homework ohm Size of a current. Resistance and Ohm's Law An business law current flows when charged particles called electrons move through a conductor conductor: The equation below shows the relationship between resistance, voltage and current: Question Bicycles with battery operated lights often have different size bulbs for the front and rear lights.
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