Why does rubbing the cell increase the brightness of the bulb?
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Why does rubbing the cell increase the brightness of the bulb?
Electrical Current
An electrical current or current is a net flow of electron in a conductor or a wire. Current in a wire can be calculated by getting the voltage and resistance of the wire by using Ohm's law {eq}V = IR {/eq}
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Rubbing the cell increases the temperature thus increases the conductivity of the cell.
Increase in conductivity means more electron flow and...
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What is Electric Current? - Definition, Unit & Types
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Chapter 6 / Lesson 7Understand the definition, meaning, and types of electric current, and how it flows. Learn the application of each type with electric current examples.
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