Does Bulb Resistance Change with Different Current Levels?

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The resistance of an electric bulb can be calculated using Ohm's Law (V = IR), where the bulb draws 2.4 amperes at 12.0 volts, resulting in a resistance of 5 ohms. When the current drawn by the bulb decreases, the resistance does not change; it remains constant at 5 ohms under normal operating conditions. The confusion may arise from the concept of inrush current, which refers to the initial surge of current when the bulb is first turned on, but this does not affect the steady-state resistance. Therefore, the resistance of the bulb remains the same regardless of variations in current, as long as the voltage remains constant. Understanding these principles is crucial for accurate electrical circuit analysis.
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Request answer for the below question:

"An Electric bulb draws 2.4 amphere at 12.0 volts. What is the resistance. What happens to the resistance of the same bulb when it draws current less than that of the given value?"


does the resistance decrease, increase or remain same? i was marked wrong for writing that it remains same. Please help
 
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For the second part look up "inrush current"
 
Are you familiar with the equation V = IR, where V is the voltage, I is the current, and R is the resistance? This is one of the most basic and used equations in electrical circuit theory.
 

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